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Old 01-01-2010, 12:46 AM   #2 (permalink)
Christ
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
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The mileage gains are reported as "potential" gains, and come only from the fact that the oil performs as a zero weight when it's cold. The comparison, if I remember correctly, is made against standard 10W30 oils.

I run it in my Van, I've had it in for over 10k miles, and only added 1.5 qts in that time, with the same filter, no air filter, and it still looks like oil last time I checked, which was, admittedly, about a month ago.
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