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Re: ...and from Saab 9000 0:2 Technical Data M85-96... Posted by sam96CS [Email] (#852) [Profile/Gallery] (more from sam96CS) on Fri, 20 Feb 2015 04:59:35 In Reply to: ...and from Saab 9000 0:2 Technical Data M85-96..., DanaH, Thu, 19 Feb 2015 20:59:55 Members do not see ads below this line. - Help Keep This Site Online - Signup |
If that document is online then please provide a link.
The CCMC sequences are old European standards that were replaced by ACEA standards in 1996. The "G" prefix in "G4/G5" designates oil for gasoline engines.
I found these descriptions of CCMC G-4 and CCMC G-5:
CCMC G-4 :
1989, normal viscosity specification. Performance beyond API SG level, particularly in the areas of valve train wear and high temperature sludging resistance.
CCMC G-5 :
1989, low viscosity specification. Performance beyond API SG level particularly in the areas of valve train wear and high temperature sludging resistance. Restricted to 5W-xx and 10Wxx multigrades, but with severe HTHS requirements. As well, CCMC G-5 has a stringent evaporative loss requirement, more stringent than ILSAC GF-1.
The "severe HTHS requirements" in CCMC G-5 and its "stringent evaporative loss requirement" sound appropriate for the mechanical and thermal stresses in a B234 engine and its turbo. I've read that the modern equivalent of CCMC G-5 is ACEA A3, but that is unofficial.
Engine oil classification article
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