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The g20 was designed in the sixties, and as a result, fuel economy wasn't really an issue. They're big, heavy, and aerodynamically awkward. You can't do much about that except try to adjust driving habits.

Try not to drive quite so quickly. Driving at 65 instead of 75 can improve your mileage by a fairly substantial amount, and doesn't add up to all that much more time on shorter trips. If you're driving around town more than on the highway, try not to hit the gas quite as hard between stoplights.

Also try to reduce excess weight. While it doesn't add up to much on the highway, more weight requires more gas to accelerate, so it does make a difference around town. If you can easily unbolt some stuff that you don't need, go for it, providing you can get it back in afterwards for when you do.

Running on premium or higher-octane gas will also improve your mileage somewhat, but because it costs more, you might not really be getting much benefit. Google hypermiling techniques. Most of what you'll get is what I said above, though.

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15y ago

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