I purchased a 2004 Pontiac GTO in January 2004. In my owner's manual it says to use only oil identified as meeting GM standard GM6094M and having the starburst symbol on the front of the oil container.
There's nothing in the auto parts stores marked like this. I talked to the dealership and even called GM; they didn't know anything about these numbers.
I know the car has a Corvette engine, but I was trying to avoid using Mobil 1 because it's so expensive.
The General Motors oil specification you cite â GM6094M â denotes specific loads and temperatures to be met in the test lab. Our research did not uncover the specific goals of GM6094M, but quickly showed that many synthetic and mineral based oils meet the requirements, so there is nothing too exotic about your engine's oil requirements. Both Havoline (mineral) and Redline (synthetic) 5W-30 oils meet this specification, for example, so you ought to be able to find a number of oils that will work.
As for the starburst, that is simply the certification mark of the American Petroleum Institute. It will be found on any quality motor oil.
also, http://www.castrol.com indicates that their oils meet GM6094M
I imagine most major brand oils are going to meet the spec requirements.
Come see it all at: http://members.cardomain.com/04blkvibe
|Quote, originally posted by 04BlkVibe »|
|Interesting. Didn't see any Valvoline SynPower. But I got an email from Valvoline saying that they meet that spec!|
IIRC, that's a relatively new product to the market. Comparatively, anyway.
Perhaps SynPower was released after that document's last revision?
EDIT: Never mind, just saw it was revised on 5/9/05. Screws that theory.
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