Read the full article hereFor example, what is the fuel efficiency of the gas car you are giving up? Are you trading in a 16 MPG Hummer or a 25 MPG Ford Focus? And what do you pay for gas in your area? Let’s assume for the sake of argument you’re replacing a ride that gets a respectable 25 miles per gallon and you pay $3.75 for gas. That means your fuel cost is $0.15 per mile. So that’s the benchmark.
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