Zach Dorsch wrote:
> Something that I have heard about synthetic oil in an old motor is
> that it will start leaking oil due to the synthetic cleaning so well
> and be so "slippery". Has anyone else heard this or actually seen
> this happen?
> I ask because I have thought about switching to synthetic because my
> car sits so long (usually several months or more). I assume that the
> synthetic would not break down and help reduce wear on startup.
I was told not to use it (Valvoline synthetic) in the Cooper S, since it
was claimed that it would leak past the big crank seal and ruin the
clutch. I tried it anyway, after a good break-in period, on the new
rebuild back in 1999. Never had any problems with it: no clutch
slippage, no bad leaks.
Since then, I have had another rebuild and am running regular Valvoline
in the engine now. I may go back to the synthetic after a suitable
period of time.
Tentatively planning to run synthetic in the Victor and MGA once they
are all finished.
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