Gasoline prices have fallen substantially in recent years, but they have been on the rebound as of late. Whatever the price, gasoline can be a significant part of your monthly budget if you drive a lot or if your household has multiple vehicles. If you own a thrifty fuel sipper or electric hybrid, good for you.

But for those of us driving high performance cars or large heavy SUVs, we could surely do with some extra help on top of making use of awesome gas credit cards that give us cash rewards. Here, we at GET.com put together 6 hacks help you to save some money on gas.

1. Slow Down

Maybe you've outgrown your inability to drive 55. If so, you can save hundreds a year by slowing down by about 10 miles per hour. Vehicles usually start losing efficiency above 50 mph. Just remember: You're paying an additional 24 cents per gallon for every 5 mph above 50. Cruising along at 70 mph is adding almost a buck a gallon to your gas costs.

2. The Idle Poor

If you're idling, you're paying. There once was a time when it cost more money to turn off and restart a car rather than letting it idle. Cars have improved since then, thanks to modern fuel injection. You burn a mile's worth of gasoline for every two minutes of idling, so why not just turn off the engine and save some money?

3. Watch Those Tires

Presidents recommend you keep your tires properly inflated, and you should listen to them. When tires go soft, they increase the energy-robbing friction with the road, causing your engine to work harder in a bid to propel your vehicle forward.

You lose 1 percent fuel efficiency for every tire underinflated by two pounds per square inch. That can be a serious money drain over time. Keep your tires filled to the maximum recommended by the manufacturer and save money.

4. Get Your Engine Oiled Up

Your car's manufacturer went to a lot of trouble to design and build your engine. It knows exactly which grade of motor oil to use to achieve optimal performance. Stick to that grade, and use an oil with an API performance symbol that reads "Energy Conserving".

That way, you know that the oil has been blended with special additive to reduce friction. Other oil additives can help clean your fuel system as you drive. Synthetic oil costs more, but lasts longer and usually has the richest blend of additives.

5. Tame The Lead Foot

Jackrabbit starts might be fun, but they're expensive. Not only do they burn extra fuel, they also put extra stress on your powertrain that can cause damage over time.

6. Tune It Up

A well-tuned engine is about 4 percent more efficient than an untuned one. If you failed your emissions test, take your car directly to the shop for a tune up and any necessary repairs. You'll get better mileage in addition to breathing easier too.