novaderrik
Well-Known Member
- Joined
- May 12, 2004
apparently someone at GM thinks they know a thing or two about what makes engine oils work...
https://www.gmtraining.com/tmswebtree/techlink/images/issues/dec07/TLdec07e.html#story1
https://www.gmtraining.com/tmswebtree/techlink/images/issues/dec07/TLdec07e.html#story1