Mobil 1 Extended Performance meets GM 4718M ?
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Amsoil has it on the bottle and spec sheet.
Just guessing, but I'd bet that with the original Mobil 1 Extended Performance not meeting GF4 certification due to too much zinc and whatever else, Mobil probably wants to wait till almost all of the old stock is considered off the retail shelves. It would get messy if people ran out and bought the top of the line Mobil 1 - after reading the current website, only to later find out that the old stock they just picked up didn't meet GF4 specs. And then possibly have a warranty issue.
Again, it's just a guess but it would make sense.
Patman
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I still wouldn't take a chance and run any oil in a new Corvette under warranty that isn't on this list:
Patman,
What oil did you run in your Vette before you switched to GC while it was still under warranty?
What oil did you run in your Vette before you switched to GC while it was still under warranty?
Patman
Staff member
I bought my Corvette used in 2004, so it's warranty was long gone by then. As soon as I got it home from buying it, I put GC in there.
If I were buying a new Corvette right now, I'd go with Pennzoil Platinum 5w30.
My understanding is that Quaker State also now meets GM4718, which makes sense since they are affiliated in a sense with Pennzoil.
So does the Mobil 1 Extended Performance meet the GM4718 standard or not, I am a bit confused.
So does the Mobil 1 Extended Performance meet the GM4718 standard or not, I am a bit confused.
Tim, at some point, the fact has to be separated from the fantasy.
Currently, the "meets or exceeds" verbage is widely used, & we all know it's not the same as actually passing the spec tests.
My hat is off to Citgo, as this company has not engaged in the shady practice of the "meets or exceeds" verbage, and has actually had the product tested to pass the GM 4718M requirements.
Citgo is also one of the few companies that has submitted a 2 cycle air cooled engine oil to the JASO FC test sequence and passed & received a JASO FC registered certification.
And, as usual, the equivalent Amsoil 2 cycle oil claims that "meets or exceeds JASO-FC requirements" yet Amsoil has not passed the registration requirements that Citgo has successfully tested & passed.
So, my simple question is this - Why is Amsoil not listed on the approved Corvette 4718M Approved List?
Amsoil isn't big on paying companies to be on their approved lists. They would rather back up their products with parts and labor warranties should the products ever fail. And they don't in their approved applications. Amsoil states this here: https://www.amsoil.com/dealer/askamsoil/api_licensing/api_licensing.aspx . Their business model has worked well for them for 35 years and don't see a need to change it. When they do see a need, I am sure they will.
But again, here is my point, as Citgo has taken the time & expense to submit a sample & pay for the testing, to pass the Corvette 4718M and the JASO FC 2 cycle oil test requirements.
So why does Citgo take these test requirements seriously & Amsoil just uses the "meets or exceeds" verbage?
BTW - As Pablo understands & longtime Bitog members understand, I am not a Amsoil basher, I am a believer in honest, straight-forward marketing.
So why does Citgo take these test requirements seriously & Amsoil just uses the "meets or exceeds" verbage?
BTW - As Pablo understands & longtime Bitog members understand, I am not a Amsoil basher, I am a believer in honest, straight-forward marketing.
Citgo has made the business decision to pay Chevrolet. Amsoil has made the decision not to pay Chevrolet. Why should Amsoil pay anybody who comes out with an approved list for every car on the market when they don't feel they have to? If Chevrolet has a problem, they could sue Amsoil to remove their recommendations and they could deny warranty coverage, but they haven't against Amsoil. Why not, because it is against the law.
I am not an Amsoil employee. Why don't you ask Amsoil?
I am not an Amsoil employee. Why don't you ask Amsoil?
Again, Amsoil simply looks bad in these situations!
Citgo, arguably a lesser lubricants company in the synthetics market place, takes the time to get Jaso-FC & GM 4719M test approval for the applicable oils, why does'nt a quality conscious company as Amsoil do the same?
I think we all know the answer - Amsoil can claim to meet the spec & it it is an unknown since the actual test was never run.
Again, my hat is off to Citgo & the Cicero, Ill facility for actually developing & submitting an oil that passes the previously mentioned test regimen!
Citgo, arguably a lesser lubricants company in the synthetics market place, takes the time to get Jaso-FC & GM 4719M test approval for the applicable oils, why does'nt a quality conscious company as Amsoil do the same?
I think we all know the answer - Amsoil can claim to meet the spec & it it is an unknown since the actual test was never run.
Again, my hat is off to Citgo & the Cicero, Ill facility for actually developing & submitting an oil that passes the previously mentioned test regimen!
FEATURES
QUAKER STATE® FULL SYNTHETIC MOTOR OIL exceeds:
• North American warranty requirements for U.S., European and Japanese cars and light trucks with gasoline and gasoline turbo-charged engines where API SL, SJ or SH are specified
• North American warranty requirements for U.S., European and Japanese cars and light trucks with diesel engines where API CF oils are specified (5w30, 10w30, 5W-50)
• ILSAC GF-4, GF-3 and GF-2 Energy Conserving performance standards (5W-20, 5w30 & 10w30)
• Meets Corvette GM 4718M-Corvette (5w30 & 10w30)
• Meets Ford WSS-M2C153-H and WSS M2C930-A (5W-20) and WSS-M2C929-A (5w30)
• Meets GM 6094M for enhanced pumpability (SAE 5w30 and SAE 10w30)
• Meets the European ACEA A1-02 (5W-20), ACEA A3-02 (10W-30, 5W-50) and ACEA A5-02 (5w30) specifications
QUAKER STATE® FULL SYNTHETIC MOTOR OIL exceeds:
• North American warranty requirements for U.S., European and Japanese cars and light trucks with gasoline and gasoline turbo-charged engines where API SL, SJ or SH are specified
• North American warranty requirements for U.S., European and Japanese cars and light trucks with diesel engines where API CF oils are specified (5w30, 10w30, 5W-50)
• ILSAC GF-4, GF-3 and GF-2 Energy Conserving performance standards (5W-20, 5w30 & 10w30)
• Meets Corvette GM 4718M-Corvette (5w30 & 10w30)
• Meets Ford WSS-M2C153-H and WSS M2C930-A (5W-20) and WSS-M2C929-A (5w30)
• Meets GM 6094M for enhanced pumpability (SAE 5w30 and SAE 10w30)
• Meets the European ACEA A1-02 (5W-20), ACEA A3-02 (10W-30, 5W-50) and ACEA A5-02 (5w30) specifications
My guess is that the GM 4718M requirements are not extremely rigorous and that some companies, such as Amsoil, while probably tested in-house and passed no problem, do not choose to pay to be on their approved list. I wonder if Amsoil's XL line of oils meets the spec? At least these oils have the API license and starburst. Aren't their PAO oils supposed to be even better?
"I still wouldn't take a chance and run any oil in a new Corvette under warranty that isn't on this list:"
What is this Northland oil brand? I am unfamiliar?!
Yeah, I certainly understand the better safe than sorry approach. I however do not purchase any extended warranties and modify the car to the point of warranty smarranty irrelevance. If I ever tried to make a warranty claim on one of my engines, the dealership would call comedy central.
In these LSX motors it seems to me (presuming you feel free to use any oil you wish) that one must strike a balance between chatter and horsepower/torque. I have tried many brands and viscosity types and my used oil analysis have done nothing but validate the Haas article. The twenty weights have produced much less wear, by a lot. In fact, it has not even been close.
As much as I did not want to believe it for some reason, I must admit it looks like I was wrong.
What is this Northland oil brand? I am unfamiliar?!
Yeah, I certainly understand the better safe than sorry approach. I however do not purchase any extended warranties and modify the car to the point of warranty smarranty irrelevance. If I ever tried to make a warranty claim on one of my engines, the dealership would call comedy central.
In these LSX motors it seems to me (presuming you feel free to use any oil you wish) that one must strike a balance between chatter and horsepower/torque. I have tried many brands and viscosity types and my used oil analysis have done nothing but validate the Haas article. The twenty weights have produced much less wear, by a lot. In fact, it has not even been close.
As much as I did not want to believe it for some reason, I must admit it looks like I was wrong.
What Mobil was saying in the email is that while regular M1 meets/exceeds the GM spec, the Mobil 1 Extended Performance "would" meet it, but really doesn't. LOL. So, Mobil 1 Extended Performance is not the oil to use in this application unless they do get it tested. I think any of the approved oils are great choices IMO.
If you go back some years, the first oil to meet the spec was Mobil 1, which was what they tested and used to solve an engineering problem. AMSOIL was able to meet all the same requirements as Mobil 1, so they added the "meets or exceeds" verbage. That was probably back when many of you were still in diapers. That was back in the days when only Mobil 1 and AMSOIL met (or exceeded) the European oil specs.
If you don't want to use AMSOIL, or Mobil 1 Extended Performance, fine. Get over it.
If you don't want to use AMSOIL, or Mobil 1 Extended Performance, fine. Get over it.
Pennzoil Platinum says so on the bottle. Use it.
I just checked and M-1 says so on the bottle as well. Must be the additives in Mobil 1 Extended Performance that don't meet the spec. I doubt that Mobil would "forget" to put it on. They enjoy a pretty handsome market with the M1 factory fills and all the dealers who stock regular M-1. Why confuse that with an EP oil when they want everyone to continue with the factory fill and change according to dealer spec and not an extended OCI. I am sure lots of guys change their vette oil at 3000 and who would want to mess with that profit?
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