
Originally Posted by
addzradd
Cheapest stuff I can find in the GTP, usually wallyworld supertech special. I run it at 5-6k intervals and blackstone says I could probably extend it out to 7500 if I wanted.
I never understood the bible 3k mile oil change thing, that was standard for high tolerance clunky 60's cars with alot less sophisticated oil than we have today, of course it will last longer. FWIW my cylinders sitll have crosshatching on them and my valve covers have a some light brown staining, mostly from seepage I would imagine.