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royal is pruple is supposed to help pick up loss power but obviouly that's probably means .5 hp. But to say the least the stuff is the best and i'll spend 40 to 50 bucks on oil to keep my engine in top shape. The auto port at the nex has the royal purple.
yeah. it does. thats what i used to run, but recently i tried Q horsepower full synthetic. i cant tell a difference from royal purple, but hey...ferrari uses it, so i figured i would try
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