gasoline to help with cleaning . Is it as good as P.E.A. ? https://www.gulfoil.com/products . Have used GULF in the past and got good gas mileage with it . It was usually the 93 octane . Some of the GULF gas stations are now CUMBERLAND FARMS . Wonder if those use the BASF additive . Here's the history of GULF , https://www.nu-tierbrands.com/gulf-brand/lubricants/ .
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