Mpg Vs $
I started my new job. And I was experimenting with the different grades of gas. I did one week on 87 octane and got only 19 MPG and then I did one week with 92 octane and went to 22 MPG. I figure with the difference in price and not having to worry about engine problems. It is better to use the 92 octane. The route I drive is 27 miles one way and is mostly high way driving at 55 to 65 MPH.
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