In June 2007, when I bought my new 2007 Tacoma, I made that decision.
I decided to use only Mobil 1 in the truck, and I’ve done every oil change myself, with some variant of M1 5W-30 or 10W-30.
I’ve used vanilla, the old Truck & SUV, and, since it had about 70K, it’s had exclusively the EP or AP.
With that truck, it’s worked out very well, as evidenced by the fact that it uses zero oil between 10K OCIs, and the engine, at least by my butt dyno, feels like it hasn’t lost any power since I drove it home from Jonesboogie, Rockansas that day in June 2007.
Now it has >240K. And I do intend to stick with M1, at least on that truck.
These days, however, Im not married to the idea of one specific type or brand or grade. Yall have influenced me somewhat over the years.
Some of you guys advise to use different brands and switch it up beczuse you say that the deposits left behind by one brand can be cleaned up by another brand. I don’t know if that’s necessarily true, especially if you’re using top of the line oil as I like to do, but it does make sense.
The 4Runner has had Valvoline Modern Engine and M1-AP 0W-20, and currently it’s 7K into a planned 10K run of M1-EP 10W-30 that I got for $9/jug after rebate. It will likely see many different oils. I’ll use whatever top-quality full synth that I can get a deal on.