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Friday Fuel Economy: Don't Top Off

By John Rockhold

Tags: gas prices, gas mileage, mpg tips,

One of the best ways to save money on gas and improve your fuel economy is to not buy gas you don't need, or can't even use for that matter. The easiest ways to do that is to not top off your tank.

It's a bad habit for many people — after the pump shuts off automatically they think they can squeeze more gas in their tanks or they want to get the cost to a round number. But the truth is the nozzle knows when to stop. Trust the nozzle. Here's why:

John Rockhold is a green car enthusiast and Contributing Editor for MOTHER EARTH NEWS. Find him on .