Quote:
Originally Posted by Pepsi
Would filling up your tank only half up all the time help with weight? What's that like 70 pounds? Probably not worth the hassle of going to the gas station twice as much though.
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70 pounds of gas will reduce your mpg at highway speeds by 0.2 mpg. Weight matters, but other factors are far more significant. Like air pressure in your tires, maintaining a constant speed and slowing down using the generator.