>>>>> "Michael" == Michael D Porter <mdporter@rt66.com> writes:
Michael> All the quite-correct comments about leakage
Michael> aside, I only know of one person who drives his
Michael> car really hard who has used Syntec. A guy who
Michael> works for me runs a drag Mustang with a 460 big
Michael> block, and the first time he tried it, as he went
Michael> through the lights and let off on the throttle,
Michael> the oil pressure went to zero for about a 1/4
Michael> second, but it was enough to spin a rod
Michael> bearing. Hard to come up with any rational reason
Michael> why that would happen, but he changed back to
Michael> 20W-50 Castrol and hasn't had a similar problem
Michael> since, with no other changes.
Michael> Only thing I could think of is that with the
Michael> throttles closed, the oil is light enough to get
Michael> pulled up and away from the pickup from a vacuum
Michael> surge.
I use Syntec in my Dodge Shadow (2.5L Turbo, not the Shelby
flavour). Have since my first winter in Milwaukee. I just
hated having odd oil pressure pulsations and hard starting in
the winter. With nearly 100K miles on it, I'm the only owner
I've talked to that hasn't done a turbo or a head on this
motor yet, and I drive it fairly hard. I used to do Solo II
in it, and it's seen a little track time too. Many shocks and
brake parts, but no engine problems. YMMV.
-MM
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