Pennzoil Platinum is totally different than regular old pennzoil. Anyone who trashes it should know what they are talking about before they throw it under the bus. It is a fully synthetic motor oil. It meets new car standards for VW, Porsche, Honda/Acura, and BMW. It is not the regular old $.99/quart pennzoil you would get at wal-mart. It's actually pretty pricey. Even regular pennzoil should be fine for an every day car. Just because its not purple doesn't mean its crap. If you get your oil changed at a shop, the shop oil is usually something along the lines of pennzoil 10w30 or quaker state. And those cars will absolutely run just fine for a long time.
Also, just because an oil looks dirtier when it comes out of the crankcase does not mean it is a bad oil...it means it was doing its job. Color only shows the amount of dirt that has been trapped in the oil. The only thing color is good for is showing whether the oil is new or used.
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