LOS ANGELES (CBSLA.com) — Southern Californians may not find relief at the gas pump any time soon, so here are a few tips to conserve fuel.

The U.S. Department of Energy says, if you can’t buy a more efficient vehicle, try to drive more efficiently, keep your car in shape and plan your trips in advance.

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Keeping tires properly inflated, and using the recommended grade of motor oil can help improve gas mileage more than up to 3 percent. Replacing clogged air filters will improve your car’s performance, but not your miles per gallon, according to a new study.

Removing excess weight can help reduce MPG by up to 2 percent, and drivers should shut off the engine if parked in any one spot for more than two minutes.

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Most importantly, drivers should slow down. Driving at 55 miles per hour is 15 percent more efficient than driving at 65 mph.

Smartphones can be a driver’s best friend for saving money. TrueCar.com has a list of their 10 favorite apps for saving money on gas.

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