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I always heard that Pennsoil has a decent amount of parafin wax? I always stayed away form Penn.
Ive only recently started using valvoline high milage on the caprice recently. I did notice, oddly enough, a smoother idling car. I was given some oil after Sears switched form Castrol to Valvoline, and was impressed. So when we have the 5 qts and filter with teh HM Valvoline.
Problem is, the filter is a Fram Tough Guard. I saw that it got decent ratings, but I miss my PureONE filters.
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2/20/2013: They Day the ****s Stopped
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