Comments by "fialee8" (@fialee8) on "Is “High Mileage” Motor Oil Safe? Let’s find out! Mobil 1 vs Mobil 1 High Mileage; SuperTech vs STHM" video.

  1. If the high mileage oil is better... why would anyone buy the regular oil, vs just using the high mileage oil from the start? Is there any downside?
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