Ive been using using Mobil 1 since around 10k mi. The last few changes I bought the Mobil 1 truck/Suv formula. Is there really a big difference between the 2 blends? The price is the same... My 4.0 isnt exactly a workhorse, just when i need it to be a few times a year. Just wondered what M1 users thought about it....

 

Good question I wonder if there is even a diffrence. Sence the 3.0 calls for 5w-20 I use 0w-20 M1.

 

as long as they are both synthetic which they are then there is no diff... I used Mobile 1 5w30 and ive gone btween the normal synthetic and the truck/suv... no difference