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miles per gallon

  1. Soul General Discussion (Gen 1)
    I use regular in my 2.0L 2013 Kia Soul and it seems I burn gas quickly. I put gas when it really cool (temperature) and I do not drive crazy. I'm very conservative when it comes to driving. Also, I keep the ECO button on in my car all the time. I take it off and I get worse MPG. Should I go 91...