I guess I don't understand why GM would tell it's own dealerships and techs to use Mobil 1 specifically because of it's low calcium and not because of it's Dexos certification...since dealerships and techs are supposed to be using Dexos certified oil anyway...why make the distinction to use a low calcium synthetic...why make a technical bulletin when you are already supposed to following the Dexos mandate already???
wemay...thanks SO much for that link...it helps a lot
Exxon Mobil pays GM for the advertising and recommendation. In this case maybe EM told GM to push the brand more along with a higher payout?
All automakers have similar contracts with oil companies but this is the first I’ve heard of one being pushy about it. Usually it’s just a notation in the owners manual or a sign in the service department.
As wemay stated, the dexos 1 Generation 2 certification is all you need.