WHAT KIND OF OIL ARE YOU RUNNING WITH?

What kind of oil are you guys running on?
 
I have a 2006 1500 and I'm looking for the best oil around, any recommendations?

I am running Mobile 1 synthetic. I like it, well since my truck has 220k miles on it I dont want any of my main bearings to go south.

IMO Royal Purple is the best mfg out there for fluids period. I always run it and have had great success with it. Will be swapping my new NBS 07 over to it here in pretty soon. Redline or Penzoil Platinum would be other good choices.

I wouldn't use Royal Purple or Redline as they are not GM4718M certified.
Pensoil Platinum Full Synthetic does though and is a good product.

I use Mobil 1

I also use Mobil 1 have 122K on my 2000 Surburban. Had 187K on a  90 GMC 1500 before it was stolen. At my part-time job we use Mobil 1 also. We have Ford F350 vans, just got new ones. The last 4 had over 400K avg ,[ in just over 3 yr.s],on all of them never had any engine trouble. I oversee all of the Maint. and although they were hard on brakes,tires, front ends the engines held up .

quote:

ORIGINAL: Fireguy8

We have Ford F350 vans, just got new ones. The last 4 had over 400K avg ,[ in just over 3 yr.s],on all of them never had any engine trouble.

WOW!!! lots of miles on those!

quote:

ORIGINAL: ZX1100F1

I wouldn't use Royal Purple or Redline as they are not GM4718M certified.
Pensoil Platinum Full Synthetic does though and is a good product.

I use Mobil 1

Where to start? Maybe here. The GM4718M oil standard is for GM vehicles that come with synthetic oil from the factory( Vette,  GTO I believe, and maybe some others ). It would not apply to the Silverado 1500 in question. The oil standard that would apply to this person's truck is GM6094M and RP exceeds that standard. It does not list the standard on the bottle( RP doesn't do that except for one I will mention below )or web site due to a technicality of the oil rating system( SL vs SM - being certified for the new SM would actually cause RP to use inferior ingredients and their oil would not be as good - it does meet/exceed all performance spec's however so under the Magnuson-Moss act you are fine  ). It is just technical red tape.

The GM6094M oil standard has to do with cold start properties. I have the standard spec's and what is required and RP exceeds the standard. It will NOT void warranty using it. GM states the oil must be API Certified( which it is )and meet GM6094M standards( which it exceeds ). So, he can use RP no problem and his warranty is fine.

On to the synthetic standard you brought up. Royal Purple actually not only meets the spec's for GM4178M it exceeds it from the info I have gathered. RP actually lists the 4718M standard on the bottle so any discussion about the subject is kind of pointless. It is right on the back of the bottle and I have seen it personally. For some reason they don't list it on their web site for me to proivide a link to however. But, it does meet/exceed the standard and is safe for warranty use in vehicles calling for it as well as his truck.

Redline is fine for the GM6094M standard and would exceed it( ANY synthetic would ). I don't know about it in regards to the GM4718M standard as they don't list that info on their site and I haven't researched the standard spec's to check it out the way I did RP and GM6094M( only oil I run and that was the standard I needed to verify - at the time though I saw 4718M on the bottle and as that is a superior rating I knew it would be fine for the lesser 6094M - just wanted the info for personal knowledge ). I do know it is very popular with the Vette guys required to use an oil that meets that standard however and many run it no problem.

Redline or Royal Purple are no problem in a Silverado 1500. The oil standard you site isn't relevant to this vehicle.  NO offense meant by any of this but let's keep the info relevant to the guy's truck and what is required for it. No sense confusing the issue with standards that don't apply.

On the over 400K mi, I work Part-time as a contract driver for a La. state run program that is called Motorist Assistance,[MAP], we assist stranded drivers,police depts.,fire, etc. We work accidents,[most of us are full time firefighters,Emts], provide emergency lights,protection and fix minor problems to get folks off of the Interstates .I  need to add that a good oil filter is also very important. I don`t use Fram. I primarily use Wix. A good site to check is Bob`s The Oil Guy .com

    Amsoil is the only oil that will ever be going in all of my vehicles. I don't get why there is such hype for RP. I wouldnt use mobil 1 either.  My truck is Amsoil front to back. Severe Gear 75W90 in axles. Hi performance 5W30 in motor, Torque drive ATF in transmission.

I use Royal Purple it is the best oil my motor runs cooler an makes more power.

     How many degrees cooler and how many horsepower? You must be joking.  Oil doesn't create horsepower.  And your temp gauge shows the same with all oils. Radiator, waterpump and t- stat might affect the temp. I use synthetic for cold start, gas mileage and longevity.  stop fooling yourself into thinking the oil is doing things that it cannot.

quote:

ORIGINAL: Waboom!!

How many degrees cooler and how many horsepower? You must be joking.  Oil doesn't create horsepower.  And your temp gauge shows the same with all oils. Radiator, waterpump and t- stat might affect the temp. I use synthetic for cold start, gas mileage and longevity.  stop fooling yourself into thinking the oil is doing things that it cannot.

You can visit RP's web site and see independant dino tests on vehicles that have had various fluids swapped over to RP( from just oil to just gear oil to all fluids ). They have independant documentation of 5-10 HP+ gains, as well as temp drops, on the different vehicles. Of course other synthetics would achieve similar results and it is not JUST oil giving the gains. The oil does give small HP gains though. Common sense tells you that as does physics. The way this is achieved is through reduced friction in the drivetrain which robs HP. Not a myth or old wives tale. Synthetic's actually do increase power because they reduce friction( also how they reduce temp ).

As to the temp issue. 1st off a temp gauge unless it uses numbers is hard to tell exactly what temp you are running at. Factory gauges with L-H, and a few marker lines in between, on the gauge don't tell you much. As to the t-stat controlling temp you are correct. However, running synthetic oil will lower your operating temp a little. If you add in some coolant additive such as Royal Purple's  PURPLE ICE it will lower it quite a bit( I have seen a 10 degree drop in one of my muscle cars with a digital gauge ).

Now, it WON'T lower it below the temp your t-stat is rated for.  It will reduce the temp the engine reaches above that t-stat rating. If you have say a 195 degree t-stat all that means is the t-stat will stay closed until your engine reaches 195 degrees, and then at 195 degrees, it opens to allow coolant through. Your coolant is not going to stay at 195 degrees however. NOPE! It might hit as high as say 210 degrees at full operating temp.

That heat comes from the friction in your engine. By reducing the friction you reduce the heat. We are not talking operating temps of 180 with a 195 t-stat but we are talking cooler temps( probably 200 or so ). I have seen the most drastic temp drop when I combine running RP oil and the Purple Ice. A good 5-10 degree drop. Again, keep in mind, it doesn't mean less than the t-stat temp. That t-stat temp however is NOT what your engine will definitely run at once warmed up however. Generally it is much hotter than that.

Pretty much every truck I have ever had with a temp gauge from the factory has used the L-H with at least a marker line in the middle indicating the proper temp your truck is supposed to run at. The needle has pretty much always run just to the right of that line. Swapping JUST the oil and it drops back nearer the line or right onto it. Adding the Purple Ice and it has always swung over just to the left side. Again however, factory gauges like that are not very accurate in what they represent so that big needle swing can be just 5-10 degrees. Because your truck will certainly run hotter  than the t-stat temp you CAN see a drop in temp with synthetic oil and other additives. 

Actually, to save you the hassle of going to look it up here you go...

http://www.royalpurple.com/techrp/summary.html


Data Source: Sport Truck magazine Article available June 1st
Description of Test: Replaced existing motor oil with Royal Purple 5W30 motor oil. Dyno pull performed on an all-aluminum 572ci powerplant built by DNE Motorsports Development owned by Dave Ebbert.

Engine Type

Performance Improvement

Gasoline

An increase of 13 HP
__________________________________________

Data Source: GM High-Tech Performance Magazine Read the Article
Description of Test: Replaced existing motor oil and gear oil with Royal Purple 5W30 motor oil and Max-Gear 75W90 in a 1994 Formula Firebird with a LT1 engine*. Purple Ice super-coolant additive was added to the cooling system.

Engine Type

Performance Improvement

Gasoline

Horsepower
Increased 11 hp (4.7%)

Torque
Increased nearly 12 ft-lbs (4.2%)
___________________________________________

Data Source: Sport Truck Magazine Read the Article
Description of Test: Replaced existing 10W30 engine oil, transmission fluid and gear oil with 10W30 Royal Purple Motor Oil, Max ATF transmission fluid and Max Gear gear oil in a 1996 Chevy C3500 truck.

Engine Type

Performance Improvement

Gasoline

Horsepower
Average + 10 hp, up to 5% increase in baseline hp

Torque
Average + 12 lb-ft
__________________________________________________

Data Source: Trucks! Watch the Video
Description of Test: Trucks! television program conducted a test to determine if changing from conventional oil to Royal Purple® lubricants would decrease drag and drive train heat. The test was conducted at Hypertec's dyno facility in Memphis, Tennessee on August 27, 2005. The 'Little Red Wagon', a 1999 Dodge Ram 4x4 truck, was used for the test.
Testing Equipment: A two-in-floor, all-wheel-drive super flow chassis dynamometer and a Raytek MX4 infrared thermometer.
Procedures: The truck was strapped down for safety. The truck was then started, the four-wheel-drive engaged and the truck left running on the dyno for 30 minutes in order to allow temperatures to stabilize. Temperature readings were then taken on the front and rear differentials. The engine was then accelerated to capture the initial torque readings on the dyno. A second run on the dyno was conducted to assure consistency in results. Once consistency was documented, the truck was shut down and the motor oil, transmission fluid and differential fluids were drained and replaced with Royal Purple® lubricants.
After the fluids were swapped the truck was once again started and left running on the dyno for 30 minutes in order to allow temperatures to stabilize. Temperature readings were then taken on the front and rear differentials. The engine was then accelerated to capture the torque readings on the dyno. A second run on the dyno was conducted to assure consistency in results.

Engine Type

Performance Improvement

Gasoline

____________________________________________________
 
Data Source: Top Dead Center TV Watch the Video
Description of Test: Replaced existing conventional motorcycle oil with Royal Purple's Max-Cycle® in a brand new Rev-Tech engine. Temperatures continuously monitored using a thermal imaging camera.

Engine Type

Performance Improvement

Gasoline

An average temperature Reduction at Idle of 11° F
Greater temperature reductions were expected at higher rpm's.
________________________________________________

There are a lot more test results shown on the site using the link above documenting, through independant testers, that RP does increase power and reduce temp.

Probably a dumb question but will the Royal Purple work with an 83 Silverado c20.  Like to know. thaks
 

quote:

ORIGINAL: chevyforlife

Probably a dumb question but will the Royal Purple work with an 83 Silverado c20.  Like to know. thaks

 
It is not a dumb question.
 
The technical answer is yes it would work in the truck in question.  My actual answer however would be to not use it based on the year of the truck( ie; 1983 ). Chances are an 83 has a good 100-200K on it or more. That is just way too many miles to start using synthetic for the 1st time.
 
Can lead to all kinds of problems( ie; leaks and increased oil consumption and even some valve train noise ). The detergents in synthetic oil are so goood they act like an engine flush on a high mileage engine. They break down and dissolve all the sludge and other build up in the engine. The sludge and build up usually are keeping the engine from leaking or using oil and once dissolved it starts or gets worse if either issue was preexisting. That crud can also mask worn valve train component noise and once it is gone you hear it.
 
So, on a high mileage engine if your engine leaked already or used oil( rule of thumb is more than 1qt p/3000 miles don't swap over ) it would worsen with the synthetic. If it didn't leak or use oil chances are good it could start after all the crud is dissolved. Many people have swapped over at 100K+ and not had problems but it is a big risk. Keep in mind the synthetic actually doesn't hurt anything in your engine. The oil is not causing harm it just exposes issues already present.
 
Unless the engine has been rebuilt or swapped in your 83 C20 and has 75K or less I would not swap to any synthetic. Instead I would run a premium High Mileage conventional oil that is designed for such use. All the mfg's offer them.

I also have an 06 1500. I'm running religiously with Castrol Syntec & a shot of LUCAS. Since mine only has 14k miles, just a dab of LUCAS will do it.
 
For me, Castrol seems to be the best compromise between cost of quality. I pick it up at COSTCO for $35 cdn per 6 qt case. Don't know the price down south....but certainly cheaper.
 
I'd like to give RoyalP a try, but it's hard to find where I am, and I certainly don't plan to pay $10+ per qt..
 
Unless you're a extreme off-roader, or drag racer, any quality Synthetic will do. Anything is better than conventional garbage.
 
Now to save your engine from those occasional harsh days of driving, a little LUCAS or AMS OIL will help there.
 
 

quote:

ORIGINAL: chevyforlife

Probably a dumb question but will the Royal Purple work with an 83 Silverado c20.  Like to know. thaks

 
On an 83, like NHSilverado said, Synthetic might make it leak a bit more if it already leaks. I'm not being paid by LUCAS, but I find it's an awesome product. I have also a 78 K5 and use Lucas in it. Since it's a little more aged, I use the whole bottle, never had any problems. No leaks, no pings, no knocks, this stuff is sticks more than s*$t in dog hair.
 
My theory, go with a product that is extremely popular, without needing advertisment. Advertising means sales are going down..... No advertising means plenty of people buy it regardless. RP, Lucas, AMS oil, etc.

quote:

ORIGINAL: cheyenne06

I also have an 06 1500. I'm running religiously with Castrol Syntec & a shot of LUCAS. Since mine only has 14k miles, just a dab of LUCAS will do it.

For me, Castrol seems to be the best compromise between cost of quality. I pick it up at COSTCO for $35 cdn per 6 qt case. Don't know the price down south....but certainly cheaper.

I'd like to give RoyalP a try, but it's hard to find where I am, and I certainly don't plan to pay $10+ per qt..

Unless you're a extreme off-roader, or drag racer, any quality Synthetic will do. Anything is better than conventional garbage.

Now to save your engine from those occasional harsh days of driving, a little LUCAS or AMS OIL will help there.

$10+ p/qt??? I hope that is Canadian dollars and not US. That is a rip off. RP is sold in Canada at retail outlets. None listed for the Province of Quebec but there are many in the Provinces of Ontario and New Brunswick, which if memory serves me, border Quebec. Here are links to the dealers for those 2 provinces for you to see if by any chance there is a store not too far away with it. You can also go right to the dealer locator and select the other Provinces too to see.

http://www.royalpurple.com/dealers/canada.html#Ontario
http://www.royalpurple.com/dealers/canada.html#NewBrunswick
http://www.royalpurple.com/dealers/dealers.html

Looks like Lordco Auto Parts in British Columbia is a pretty big parts store chain that sells RP. Many many stores in the various cities of BC if one is close enough to travel to?  Not sure how far away that Province is for you, or any of the cities with a store, but maybe you could buy it by the case and get 3-4 OC's  at one time and make the trip worth it if it is too far to go get each time.

If you can find a dealer locally RP is well worth the money. Not $10 p/qt however( actually I just went and looked and $10 CAD = approx $9.50 USD right now so guess no real difference ). That is nuts. I pay $5.90 p/qt USD from a local speed shop and never pay more  than $7 p/qt USD when I am caught needing it and the only place is the national auto part store chains open late like PepBoys and Advanced Auto Parts.

Thanks for the links. Ottawa, Ontario is the closest for me at about a 2 hr. drive. BC is the above Seattle, and I'm above Vermont, so it's a little ways away.
 
$5.90 per qt isn't bad, now that I would pay. For me, the $10 cdn per qt. included shipping fees. which is just insane!
 
I'll be down in VT today, so maybe I'll picksome up at Advance Auto when I get the E3 plugs.
 

Try E-Bay as well. Just type in Royal Purple and the oil weight you want( ie; 5W-30 ). Lots of people sell it on there. Might be able to get it shipped free or cheap.

quote:

ORIGINAL: NHSilverado

quote:

ORIGINAL: ZX1100F1

I wouldn't use Royal Purple or Redline as they are not GM4718M certified.
Pensoil Platinum Full Synthetic does though and is a good product.

I use Mobil 1

Where to start? Maybe here. The GM4718M oil standard is for GM vehicles that come with synthetic oil from the factory( Vette,  GTO I believe, and maybe some others ). It would not apply to the Silverado 1500 in question. The oil standard that would apply to this person's truck is GM6094M and RP exceeds that standard. It does not list the standard on the bottle( RP doesn't do that except for one I will mention below )or web site due to a technicality of the oil rating system( SL vs SM - being certified for the new SM would actually cause RP to use inferior ingredients and their oil would not be as good - it does meet/exceed all performance spec's however so under the Magnuson-Moss act you are fine  ). It is just technical red tape.

The GM6094M oil standard has to do with cold start properties. I have the standard spec's and what is required and RP exceeds the standard. It will NOT void warranty using it. GM states the oil must be API Certified( which it is )and meet GM6094M standards( which it exceeds ). So, he can use RP no problem and his warranty is fine.

On to the synthetic standard you brought up. Royal Purple actually not only meets the spec's for GM4178M it exceeds it from the info I have gathered. RP actually lists the 4718M standard on the bottle so any discussion about the subject is kind of pointless. It is right on the back of the bottle and I have seen it personally. For some reason they don't list it on their web site for me to proivide a link to however. But, it does meet/exceed the standard and is safe for warranty use in vehicles calling for it as well as his truck.

Redline is fine for the GM6094M standard and would exceed it( ANY synthetic would ). I don't know about it in regards to the GM4718M standard as they don't list that info on their site and I haven't researched the standard spec's to check it out the way I did RP and GM6094M( only oil I run and that was the standard I needed to verify - at the time though I saw 4718M on the bottle and as that is a superior rating I knew it would be fine for the lesser 6094M - just wanted the info for personal knowledge ). I do know it is very popular with the Vette guys required to use an oil that meets that standard however and many run it no problem.

Redline or Royal Purple are no problem in a Silverado 1500. The oil standard you site isn't relevant to this vehicle.  NO offense meant by any of this but let's keep the info relevant to the guy's truck and what is required for it. No sense confusing the issue with standards that don't apply.

While GM Silverado engines call for spec GM4718M certified oil I personally would not use any oil that did not meet GM's more stringent GM6094M standard which (by the way) every oil that meets the later standard also meets GM4781M.

Royal Purple and Redline oils are NOT certified to any of GM's standards.

quote:

While GM Silverado engines call for spec GM4718M certified oil I personally would not use any oil that did not meet GM's more stringent GM6094M standard which (by the way) every oil that meets the later standard also meets GM4781M.

Royal Purple and Redline oils are NOT certified to any of GM's standards.

DUDE! You really need to educate yourself before posting.

#1 - GM6094M is the "CONVENTIONAL"oil standard for General Motors. GM4781M is the "SYNTHETIC" oil standard for General Motors. GM6094M is most definitely NOT the more stringent oil standard. Not even close. If the oil met GM4781M it would meet/exceed GM6094M not the other way around. 

#2 - All new cars and trucks( that means Silverado )from I believe 04 on, that come factory fill with conventional oil, need to meet the 6094M standard NOT the 4781M "SYNTHETIC OIL STANDARD". Please get it straight and stop giving people bad info. GM4781M applies only to vehicles like the Corvette annd GTO that come factory fill with synthetic PERIOD!

Royal Purple EXCEEDS the GM6094M standard and is 100% safe for warranty use even if the standard is not listed on the bottle. All GM requires is that the oil "meet" GM6094M, be the proper weight( 5W-30 in this case )and be API certified( see the attachment below that is a scanned copy of my NBS 07 Silverado's owners manual - same info was in my 05 ). Royal Purple meets all 3 of those requirements and actually EXCEEDS the required  oil standard.  The Magnuson-Moss act allows you to use any mfg's product  that meets or "EXCEEDS" the OE MFG's requirements and yor warranty is preserved.  Royal Purple is 100% safe for use in ANY GM car or truck calling for the 6094M standard. OMG!  Just to educate you so hopefully you finally get this straight in your head.

Also here is what the GM6094M standard is. It deals solely with the "maximum allowable low temperature pumping viscosity" of an oil. That is ALL! GM says in the manual to use an API certified oil that meets GM6094M spec's. That would be a minimum of ILSAC GF-3/API SL oil these days but also an oil that meets GM6094M cold temp spec's. An oil that meets ILSAC GF-3/API SL won't necessarily meet GM6094M spec's however. So, if GM6094M is not listed  on the bottle or mfg's web site, you have to research how their oil performs in the low temperature pumping viscosity test that defines what the standard is all about. The new ILSAC GF-4/API SM oils will meet GM6094M as it has become part of that API rating now. GM does not specify any specific API certification level however just that it carry the starburst that signals API certification and "meet" GM6094M. RP does both and as stated numerous times it actually EXCEEDS the standard. In time, when ILSAC GF-3/API SL oil ratings become obsolete, I think you will see the GM6094M standard requirement vanish as the new oils will cover it.

GM6094M is actually an old GM spec( not sure if it was called 6094M back then but the oil performance stadard has been around with GM for a long time ) that they stopped using in the early 1990's when API started licensing oils and certifying them. GM dropped the standard and simply went with API certified for a while. As stated above the newest oil ratings( API SM & ILSAC GF-4 ) will include it specifically as part of that rating. Just a guess but I think requiring GM6094M specificallly  has been brought back as a result of all the piston slap/cold start knock issues from the late 1990's to 03 +/-. The standard appeared in manuals again around 04 from the research on this subject I did.

Specifically the GM6094M standard is as follows( measurement units in "centipoise" = CP ):

0W oils = 30,000 CP @ -40 degrees C
5W oils = 40,000 CP @ -35 degrees C
10W oils = 50,000 CP @ -30 degrees C

As stated above these measurements are for the oil's "maximum allowable low temperature pumping viscosity". So that means any oil that tests out to that specific number meets the standard or exceeds the standard if it comes in with a lower number. Royal Purple's 5W-30 oil measures out at 34,800 CP @ -35 degrees C. So, it is well below the 40,000 CP maximum allowed. That means it EXCEEDS GM6094M and thus, by law, is perfectly safe to use and your warranty is safe. You can click on the link below, click packaging & properties above( sorry - flash based site and can't direct link right to the test info ), then scroll down approx half way on the page to see the test results( look for ASTM D4684 test results )...

http://www.royalpurple.com/prodsa/rpmoa.html

***NOTE - if you are interested in using an oil that does not list GM6094M on the bottle or mfg's web site look for the following test information( generally oil mfg's provide this info ) = ASTM D4684 . This is the low temperature pumping viscosity test info. You can find the test data and compare it to the info I give above. If it equals or comes in under the numbers shown then it meets/exceeds the standard and can be used and your warranty is 100% safe!***
 
Also, as I said in the 1st response on all this, Royal Purple also meets/exceeds GM4781M and it is listed on the back of the bottle( or it was last year when I researched all this ). This standard is superior to the 6094M not the other waya round as you seem to think.

No offense  meant to you on this but you have me banging my head against the wall in frustration. Royal Purple is PERFECTLY SAFE to use in ANY GM car or truck. It meets and/or exceeds both of their current oil standards. Any service department that tells you otherwise only needs to be shown the test data and then they have NO right to tell you it can't be used by law. They would absolutely lose any court case. Doubt it would ever come to that.


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Do you even understand why there are the two (GM6094M and GM4718M) standards?
Do you think that the Corvette comes factory filled with Mobil 1 becasue it's engine is so much different than the one in a Silverado or that its nature of use is so much harsher on the engine then pulling a 10 or 12,000lb trailer over the hills in 100+ degree heat?

I have pasted GM's most recent list of all the oils that certified below:
You'll notice that every oil that meets GM4718M standard is also on the GM6094M standard.
Do I really have to spell out just what the hell that means?


GM6094M Registered Products*
Revision Date: 8-May-2007
Current ILSAC GF-4 Products
Product Name SAE Viscosity Grades ILSAC Grade
76 Firebird LD Motor Oil 10W-30 GF-4
76 High Performance Full Synthetic 5W-30, 10W-30 GF-4
76 High Performance Motor Oil 10W-30 GF-4
76 Super Synthetic Blend 5W-20, 5W-30, 10W-30 GF-4
AC Delco 5W-20, 5W-30, 10W-30 GF-4
Agip 4-SYNT 5W-20, 5W-30, 10W-30 GF-4
Agip Super 5W-30, 10W-30 GF-4
Agip Super PC 5W-20 GF-4
Amalie Imperial Turbo Formula 5W-20, 5W-30, 10W-30 GF-4
Amalie Xcel Super Turbo 5W-20, 5W-30, 10W-30 GF-4
Brad Penn Superior Fuel Efficient 5W-20, 5W-30, 10W-30 GF-4
Castrol Syntec 5W-30, 10W-30 GF-4
Castrol Syntec Blend 5W-30, 10W-30 GF-4
Chevron Supreme 5W-20, 5W-30, 10W-30 GF-4
Chevron Supreme Synthetic 5W-20, 5W-30, 10W-30 GF-4
CITGO SUPERGARD 5W-30 GF-4
CITGO SUPERGARD Synthetic 5W-30, 10W-30 GF-4
Coastal 5W-20, 5W-30, 10W-30 GF-4
Conoco Super All Season Synthetic Blend 5W-20, 5W-30, 10W-30 GF-4
Conoco Syncon High Performance Synthetic 5W-30, 10W-30 GF-4
Esso Extra 5W-20, 5W-30, 10W-30 GF-4
Esso Uniflo 5W-30, 10W-30 GF-4
Exxon Superflo 5W-20, 5W-30, 10W-30 GF-4
Formula Shell 5W-30, 10W-30 GF-4
Formula Shell Synthetic Blend 5W-30, 10W-30 GF-4
GM Goodwrench 5W-20, 5W-30, 10W-30 GF-4
GM Goodwrench High Mileage 5W-30, 10W-30 GF-4
GM Goodwrench Synthetic Blend 5W-30, 10W-30 GF-4
Gulfpride Advanced Fuel Efficient 5W-20, 5W-30, 10W-30 GF-4
GulfTEC Synthetic Blend 10W-30 GF-4
Kendall GT-1 Full Synthetic 5W-30, 10W-30 GF-4
Kendall GT-1 High Performance Synthetic Blend 5W-20, 5W-30, 10W-30 GF-4
Lubriguard 5W-20, 5W-30, 10W-30 GF-4
Mobil 1 0W-30, 5W-30, 10W-30 GF-4
Mobil 1 Truck & SUV 5W-30 GF-4
Mobil Clean 5000 5W-20, 5W-30, 10W-30 GF-4
Mobil Clean 7500 5W-20, 5W-30, 10W-30 GF-4
Mobil Clean High Mileage 5W-30, 10W-30 GF-4
Mobil DriveClean 5W-20, 5W-30, 10W-30 GF-4
Northland MW Select 5W-20, 5W-30, 10W-30 GF-4
Northland, Synergy Synthetic 5W-30 GF-4
Pennzoil Motor Oil 5W-30, 10W-30 GF-4
Pennzoil Platinum Full Synthetic 5W-30, 10W-30 GF-4
Pennzoil SUV, Truck and Minivan Synthetic Blend 5W-20, 5W-30, 10W-30 GF-4
PepBoys Proline 5W-30, 10W-30 GF-4
Petro-Canada Arctic Synthetic 0W-30 GF-4
Petro-Canada Maximum 5W-30, 10W-30 GF-4
Petro-Canada Supreme 5W-20, 5W-30, 10W-30 GF-4
Petro-Canada Synthetic 5W-30, 10W-30 GF-4
Petro-Canada Synthetic Blend 5W-30 GF-4
Petro-Canada XR4 5W-30, 10W-30 GF-4
Petro-Canada XR4 Synthetic 0W-30, 5W-30 GF-4
Phillips 66 TropArtic Full Synthetic 5W-30, 10W-30 GF-4
Phillips 66 TropArtic Synthetic Blend 5W-20, 5W-30, 10W-30 GF-4
Phillips 66 TropArtic Turbo Motor Oil 10W-30 GF-4
Quaker State 4x4 & SUV Synthetic Blend 5W-30, 10W-30 GF-4
Quaker State Advanced Engine Full Synthetic 5W-30, 10W-30 GF-4
Quaker State High-RPM Synthetic Blend 5W-30, 10W-30 GF-4
Quaker State Peak Performance Motor Oil 5W-30, 10W-30 GF-4
Rallye Turbo Approved 5W-20, 5W-30, 10W-30 GF-4
Safety-Kleen America's Choice 5W-20, 5W-30, 10W-30 GF-4
Safety-Kleen Performance Plus ZR 5W-20, 5W-30, 10W-30 GF-4
Service Pro 5W-20, 5W-30, 10W-30 GF-4
Texaco Havoline 5W-20, 5W-30, 10W-30 GF-4
Texaco Havoline Synthetic 5W-20, 5W-30, 10W-30 GF-4
Valvoline 5W-20, 5W-30, 10W-30 GF-4
Valvoline DuraBlend 5W-20, 5W-30, 10W-30 GF-4
Valvoline SynPower 5W-20, 5W-30, 10W-30 GF-4
Walmart Supertech 5W-30, 10W-30 GF-4
Warren 5W-20, 5W-30, 10W-30 GF-4


GM4718M Registered Products
Revision Date: 2-May-2006
Current ILSAC GF-4 Products
Product Name Viscosity Grades ILSAC Grade
Chevron Supreme Synthetic 5W-30, 10W-30 GF-4
CITGO SUPERGARD Synthetic 5W-30, 10W-30 GF-4
Mobil 1 0W-30, 5W-30, 10W-30 GF-4
Northland, Synergy Synthetic 5W-30 GF-4
Pennzoil Platinum Full Synthetic 5W-30, 10W-30 GF-4
Texaco Havoline Synthetic 5W-30, 10W-30 GF-4

You just don't get it. You are so confused and ill informed I don't even know where to start. Do YOU actually know why there are different oil standards for different vehicles? It doesn't seem like you do.

Towing has nothing to do with the GM6094M oil standard as that standard applies to all the engines using conventional oil from 4 cyl Aveo's to 6.0L HD Silverado's. As I have explained to you it deals strictly with the "flow" of the oil at a given cold temp( see chart in my last post for viscosity and temp  ). It has no other significance. NONE! You can shout and holler and say the same thing 10 different ways trying to tell me I am wrong but bottom line is the standard has ONE test an oil must pass to meet it and that is flow at a set cold temp depending on what viscosity it is. Not sure what is causing you so much trouble with that?

Yes, the hi-perf 6.0L engine found in the Corvette is quite a bit different than the 4.3L's, 4.8L's, 5.3L's, and even the 6.0L's found in the Silverado's. You are talking a hi-perf specialty engine vs a traditional passenger car engine. Still all 6 or 8 cyls but totally different performance needs from the oil. 

Here are a couple falsehoods you keep pushing. You really need to go and educate yourself on this if you are going to tell people what to do...

1 - You are telling people that the guy who started this thread needs to run GM4718M standard( it is 4718 not 4781 as I posted previously - sorry guess it was a dyslexic moment for me )oil in his  Silverado = FALSE! Not even the 6.0L SS Silverado needs to meet this standard. The correct standard is GM6094M. I showed you the owner's manual page so you can continue to say otherwise but arguing something contrary to actual documented proof is kind of a waste of time. ONLY vehicles that come factory fill with synthetic/Mobil 1( ie; Vette, GTO, Cobalt 2.0L SS, etc... )need meet the GM4718M standard. ONLY those vehicles. If you want to say you "personally" only want to use an oil that meets that standard fine. Knock yourself out. But when you tell people that it must be used in Silverado's or that it is a lesser standard than 6094M you are doing them a big disservice and you look foolish.

2 - You keep telling people that the GM6094M oil standard is more severe than the GM4718M = false. The 4718M is a synthetic oil standard and therefore,  in and of itself, means it is much more severe than a conventional oil standard. The standard originated for European hi-performance & luxury vehicles( BMW, Porsche, Jaguar, etc... )and deals with high temp oxidation of the oil over  time. Unfortunately, I can not come up with the exact specifics as far as test data like I did with the 6094M. A base conventional oil that meets GM6094M would NOT be able to take the heat of a hi-perf engine that is pounded on all the time( GM has to assume they will be as that is what they are made for ). That is why a synthetic oil was chosen.  A hi-perf engine definitely takes more abuse( ie; more heat and sustained high RPM runs ) than an engine in a truck that tows( hard on engine yes but not as hard as hi-perf use ). 

Yes, I do understand why there are different standards and I know what they are. You clearly do not. I am just about ready to shell out the cash to buy a copy of the standard to show you but I have already done that with 6094M and you STILL don't get it.

That list is NOT all inclusive. That list is strictly for oils that specifically tested for the standard but it does not mean that any oil not on the list doesn't qualify. I also have seen that list many times( different dates )and they routinely have oils that meet it and are even certified not listed. Just a resource GM provides but by no means is it an all inclusive list. Also, as I have explained to you time and again, plus provided the statistical info to back up my point, an oil only needs to meet ANY standard or exceed it, not list it on the bottle, to qualify for warranty purposes under the Federal Law called the Magnuson-Moss act of 1974. Royal Purple exceeds the 6094M standard( + GM4718M is listed on the bottle if it makes you happy ), and is API certified. That is ALL that is required of you to fulfill your warranty obligations.

I am tired of fighting with you on this. Why don't you go out and either find the standards like I did, buy them, or call GM and ask( ask what the standard is - they will try and tell you only M1 or the list which is BS - and be sure and ask which oil standard applies to Silverado's - I can save you some time = GM6094M ). Maybe that way you will listen. Whether you want to believe it or not the 6094M standard is all that applies  to the guy who originally started this thread asking about oil. 4718M is not relevant to this discussion. If it were Royal Purple would still meet it and lists it on the bottle( or it did last year when I first started researching all this ).

I am done with going over this with you. You believe what you want but please keep in mind you are telling people things that are NOT true and it does them a big disservice. I realize you thought they were true and that is cool. I wasn't born knowing everything and I certainly don't know everything now. I will go out and find the answers though when needed or it is pointed out that I am mistaken on something. You really need to do the same. On "THIS" issue you are completely backwards, upside down, and turned all around in circles.

I use amsoil. And i love it in my truck and my grand am