- Mar 8, 2012
- Colorado Springs
GM Dexos is far from being stringent as other approvals. LSPI protection is key to some small engines, definitely not Corvette.The NOACK question overkill. With less lspi protection, does that mean it vaporizes more. Any opinions on NOACK and lspi? GM/DEXOS seems to want lower NOACKs.
I've never seen this product. I don't think they carry it at walmart. Is this stuff $$$ and do i get it at some other parts store?
But it doesn’t make sense. API SP has LSPI test and Noack limit of 15%. It is type of additives (calcium).
Most importantly, design of engine is what really matters.