stol wrote:
Yea. it was late when I wrote the email so Amsoil is correct. Ya liked
the way I spelled Valvoline too ?? ha.

I agree with you, I was surprised that they admitted to the fact it
couldn't carry the break in load of a lightly loaded gear. I fact Crane
Cam, MSD, Mallory and other suppliers require one to 'NOT' use
synthentic oil during any break in of their parts either.....


Yes, but typically the reason that synthetics aren't recommended during
engine break-in is because they protect the parts too much, not because
they protect too little. The parts need to wear in against each other
and often synthetics prevent this "normal" wearing in process and thus
cause problems later, generally with rings that don't seal well.

I'd never use synthetic during initial break-in, but I can't believe it
caused the problem you experienced, although, I'll admit to using only
Mobil 1. I've never been an AMSOIL fan, but that is based admittedly on
the fact that I find their marketing so "over the top" that it causes me
to also mistrust anything else they claim.


Matt