Edmunds.com has tested six popular gas-saving tips to see which tips really help and which aren’t quite worth the effort.

Depending on your driving habits, Edmunds claims that a few changes could improve your fuel economy up to 37 percent. Also, as someone who likes his air conditioning on a hot summer day, I was happy to read that driving with the AC on versus driving with the windows down has very little affect on gas mileage. For lots of other gas-saving tips, check out what our environmentally savvy readers had to say about conserving gas.

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