Originally Posted by
Speedy4x4
5w40 is diesel engine oil and completely different additives, are you sure they put in Mobil 1 synthetic or regular 5w40 that is made for cast iron and not the delicate mb aluminum?
I always buy my own oil and filter and have it in the car when I take it in to get oil changed so there is no descrepencies and it is cheaper.
The ONE TIME I brought my own oil and filter with me, the place didn't replace the o-rings on the canister.
So, I always do it myself. But taking the stuff with you is a good way to insure what is going in the engine, that is for sure.
You know, I'll bet they used a PAPER FILTER as well......................
