Absolute Proof DIYERS & Mechanics do not change oil properly. This can be verified with the owners manual. My findings are common sense but this seems to be lacking. Also many different videos on The best engine oil Mobil1 extended performance 5w30, Amsoil signature series, Liqui moly top tec oil, valvoline advanced full synthetic are just a few of the oils like supertech oil, castrol extended performance, royal purple HPS Motor oil and many others test then review oil thoroughly.
#mechanic #oilchange
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