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Old 07-08-2010, 09:41 AM   #7 (permalink)
gasstingy
EcoModding Apprentice
 
Join Date: Oct 2009
Location: Arab, Alabama
Posts: 176

No nickname - '17 Chevrolet BoltEV Premiere
Thanks: 33
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I rarely ever buy fuel until I'm down to 1/4 tank unless on a road trip, then I buy fuel when I have the need to use their rest room. I feel the need to visit the facilities more than my car needs to belly up to the pump. It wastes fuel to drive to/from a filling station. I fill the tank every time I buy fuel for the same reason, to reduce unnecessary trips to the filling station.

I buy the lowest octane gas that will run ageeably in my car. I did a completely unscientific test in my wifes 1990 Century {back when it was nearly new} and ran a tank of premium, then a tank of midgrade and finally a tank of regular, same long day on an 835 mile road trip. The results were less than 3/10 mpg from best to worst FE, and I forget which was best. At the different prices for fuel, regular won the coin toss. It ain't just the FE numbers to me, but the out of pocket expense.
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