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I run fully synthetic 15/50 or 20/50.
I figure the slight degradation in power is more than made up for in additional oil weight and viscosity.
ymmv,
Mike
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Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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