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YouTubeThe Motor Oil Geek
$5 VS $10 Synthetic Oil (Real Engine Results)
Do name brand oils like Amsoil and Royal Purple provide better wear protection compared to store brands like Super Tech and NAPA? Using the dyno at Shaver Speciality Racing Engines, we precisely measured engine wear thanks to a new piston ring coating and used oil analysis. This is the same 450 horsepower, flat tappet engine and test procedure ...
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