> I think I may have been running multi-weight
> 20w-50 at the time.
If you do want to try 20W50, both Ken Gillanders and Herman van den Akker
specifically recommend Valvoline Racing oil. It is low
detergent plus has anti-foaming and ZDDP additives. I ran it for several
years, and had no trouble that I associated with the oil.
(I believe the slipping in 2nd gear was due to low oil pressure.)
Valvoline has changed hands and expanded their "Racing oil" line since then, I
assume the non-synthetic, "Not Street Legal" stuff is
the equivalent of what they sold then. "VR1" apparently has more detergent in
it, to meet API requirements.
Randall
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