11 mileage-obsessed questions

Looking to unload that Sequoia? Wait until summer's over, when demand for SUVs is likelier to increase.

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A. With thousands of dollars in rebates lying on the hoods of new SUVs, it's hard to get a good price selling a used one. "You could get 45% on a three-year-old Toyota Sequoia two years ago, but now it's worth 30%," says Spinella.

Before you sell, check the "Is It Worth Trading in Your Gas Guzzler?" calculator at Edmunds.com. Depending on the answer, you may want to sit on your ute at least until fall, when four-wheel-drive vehicles will be in greater demand and pump shock may have ebbed.

If you must sell, do it on your own rather than trade it in. Dealers don't need another SUV collecting dust on their lot. So if they agree to take yours, they'll pay you well under market.

More than half of used-car buyers shop online, reports J.D. Power, so post your ad on sites like AutoTrader.com or Cars.com. To sell fast, advertise it for a few hundred less than the lowest listing.

NEXT: ...or buy a new one.