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You could try a fuel catalyst. They're different than fuel additives because they actually help your engine burn fuel more efficiently. The one I use is Fuel Infusion - www.fuelinfusion.com and I see about a 10-15% increase in MPG. Others have reported larger gains. Anyway, besides good car maintenance, a fuel catalyst is a cheap way to increase your gas mileage. Good Luck!

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Q: How do increase gas mileage on a Toyota Rav 4 other than reduced speed tune ups and correct tire pressure?
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