As long as were in the KC sponsored FE talk forum, I wonder what Keith's engine assemblers use?
...nothing wrong with 'older than dirt', it's not like 'modern' engine oils are better than the old formulas that at least HAD some '
zinc' to protect the cam.
I don't believe the
oil companies put everything the
oil needs in there. They put just enough stuff to make a mostly viable product that meets Fed and EPA standards and not ONE micro ounce more than is required of anything (like
Zinc). And I'm not saying Marvel contains
zinc either, what is in it? Well, thats why it's "Mystery
Oil".
Rumor has it Shelby used it in the 289 cars, not that that counts for much, he might have been paid to use it and would, regardless of it's effectivness.