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Buster52's avatar
Buster52
Explorer
Jun 26, 2014

American Fuel

I have been reading about what you should expect for fuel mileage. I have noticed a steady drop in MPGs over the years. Like 15 years ago I took my 29.5 foot Coachmen on a long trip and got 9 mpg. Now I see posting of around 7.5 mpg. I know here in California we have the worst gas mileage fuel. We change twice a year from bad to worse fuel. I also know that alcohol is only 80% of the energy then in gasoline. and with all the other thinks they put in fuel cuts into its efficiency. My question is all the fuel sold in the US as bad as the fuel sold in California? If not, what states or where is the best fuel sold that gets you the best mileage? I also know newer rig need to meat stricter smog laws. That also cuts into mileage too.