rust on lifters

[97cobrasvt]

Originally Posted by gt90stang

Do you use synthetic oil? If so I remember when synthetics first came out we had problems with rust in model airplane engines, you had to use regular oil after running them or they would rust up real bad. Maybe the modern synthetics are different but I don't know for sure.

YMMV, Don

I use mobile 1 full synthetic. i have never heard of that before.