With many analysts predicting the average price of gas may hit $4 a gallon in the near future, it's more important than ever for drivers to be as fuel-efficient as possible. Though cars have improved gas mileage over years past, there are still a number of ways you can help get the most out of your car.

"There are several easy things drivers can do to stretch each tank of gas and find the lowest fuel prices when it is time to fill up," said Marshall L. Doney, the AAA national vice president of automotive, financial services and e-Business.

Among the easiest ways to save on gas is to make sure your tires are properly inflated. Still, despite the known benefits of having tires filled to the right levels, only 17 percent of drivers have all four tires sufficiently inflated. To check the proper levels, look at the manual or on a sticker on the driver's side door jamb, AAA says.

How you drive can have a significant impact on how much you spend at the pump as well. For example, driving at or around the speed limit can save you a substantial amount. The U.S. Department of Energy found that for every 5 mph driven over the speed limit it's like you're paying 24 cents more a gallon.

Similarly,  going easy on the brake and gas pedals will save money as well. By not starting and stopping so harshly you could improve mileage by as much as 33 percent, according to AAA.

Regular maintenance is also a must when it comes to improving your gas mileage. To ensure your car is running smoothly you may want to visit New Jersey State Auto Auction's Total Care Care center. Open to the public, the center provides everything from repairs to general upkeep.