My engine builder (Wayne Snyder, The Able Co.), who swears by the synthetics
(so much so that he finally got me switched over after years and years of
resistance to change ;-), does say to run it in with regular oil (he calls
it "mineral oil") first.
About one autocross with the regular stuff, then change.
The synthetic is "too slippery." It lubricates so well things like piston
rings don't seat (or take much longer to do so). That's my understanding.
Too slippery is good after everything is happy in the engine.
--Rocky Entriken
----- Original Message -----
From: <JFrymark@aol.com>
To: <fot@autox.team.net>
Sent: Tuesday, April 02, 2002 6:41 PM
Subject: Engine run-in
> I am completely rebuilding an engine that I was running on Redline
synthetic
> oil. I believe a previous thread had a consensus on running in with
> non-synthetic, then switching over. Other than the cost factor of a few
oil
> changes (not insignificant), any reasons not to start up on synthetic? Any
> bad experiences I hope not to repeat?
>
> John Frymark
> VARA EP #67 TR4A
|