i'm wondering what is the lowest viscosity i should try on my car
I wanted to try the new castrol Edge but i use 20 w/50 becasue my dad has always told me once cars are over 125 thoushand miles to use higher viscosity oil for more protection and all of his cars have always run pristine so i don't mind stickin by that to make my motor last
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Tank:
(No actual EPA numbers for car just used F/E numbers when i first got it)
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