quote:Originally posted by JE:
What means the GM4718M oil spec?
I am in europe, can't find the recommended oil according to GM for the corvette C6.
http://www.gm.com/corporate/re...oved_engine_oils.pdf
Why can't I use the 5W30 ACEA A3?
Regards JE
Short answer: If the engine calls for 5w30, yes, you can use A3/B3.