2002 Cavalier 2.2OHV, i've done religious oil changes since about 35k when i met my g/f. It currently has 91-92k, no leaks and doesn't burn a drop between changes. I run Mobil1 in my other cars, and would like to switch this over to Mobil1 since i can get the 5qt jug for $22 at wal-mart . Does the OHV respond poorly in any way to synthetic? I was poking around on here and someone said mobil1 is a bad choice, but i think that was for a 2.4. What is the real answer? Also, 91k on the original auto tranny fluid, should i have it changed? I'm hesitant to mess with it at such a high mileage. The car has been driven 80-90% highway its entire life also. It shifts as good as it did at 35k.


2002 Cavalier 4D auto, white/gray, Kenwood EZ700SR, 10" Kenwood sub, Pioneer 4x6/6x9s, stock otherwise. Susp. Tech. springs coming soon...
1998 BMW 540i 6-spd, lots of mods.
1990 BMW 557i LS1 swap.

90k on the tranni fluid?!?! Yeah, get that flushed.

Switching to synthetic will not harm the engine. Just switch.



1983 Camaro Z28