I've been doing a lot of research today, and just like every other oil thread...there's people on both sides of the fence. I've read about people using M1 exclusively in their subi and never burning a drop, and just as many people saying they burned it like a 2-stroke.
I run it in my 02 silverado with 200k miles and in my motorcycle and have never had a problem. I guess you just have to find what your car likes and stick with it
