I have read that Corvettes leave the factory filled with synthetic. Is
On Sat, 01 Sep 2001 00:15:33 -0400 "James H. Nazarian, Ph.D."
> FWIW, BMW's Motorcycle division recommends running in a new engine
> for 6000-12000
> miles on dinosaur juice before switching to synthetic. The oil
> change interval is
> 6000 and the dealer said BMW advises increasing to 7500 with their
> synthetic for
> normal driving.
> "Larry B. Macy" wrote:
> > Agreed on all points, but one note. Do not start the new engine on
> > synthetics. Too slick. The rings won't seat properly. Break-in
> requires a
> > bit of wear. Use regular mineral based oil for the first 1000 or
> > Especially with old iron blocks.
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