This method utilizes credit cards that offer rebates on fuel or other gas station purchases. The correct card can substantially lower your cost of gas. You save without having to do any maintenance on your car. This savings method costs nothing at all.

Gas companies still need to compete for your business. They don't compete on price so they have to use other methods. One method used from time to time is credit cards with rebates. The average card will rebate you 10% on your purchases at their stations. Included in those purchases are your purchases for gas. The 10% rebate is usually the first two or three months that you have the card and after that the rebate changes to 5% on your gas purchases thereafter.

For example currently BP has a credit card that will pay 10% for the first 60 days for BP gas purchases and 5% for BP gas purchases after 60 days. These cards generally offer 1% rebates on other purchases and can be used anywhere Visa or MasterCard is accepted.

The credit card explained above is specifically for BP branded stations. You can not have a rebate at other stations. Instead of a gas company card a general market card might be a good choice if you need to use many different branded stations.

Generally most credit card companies have gas rebate plans. One such company is Discover Card. They currently issue a Discover Gas Card. This credit card will provide a rebate of 5 per cent of your gasoline purchases. The Discover card generally gives you a 1 per cent rebate on other items you purchase.

Other companies that issue gas rebate cards are Chase and Citibank. Citibank has a gas credit card that provides a rebate of 6% for gasoline purchases for the first 2 months and then provides a 3% rebate thereafter. Chase has a program much like Citibank.

The advantage to using a general market card as opposed to a gas credit card is that you can use the general market credit card to buy gas at any station and get the high rebate. The gas company card only pays you the high rebate at the gas company's own stations.

But, the advantage to the gas company card is that you receive a 10 percent rebate for the initial period where as the general market card does not pay that high.

That is the main strategy for getting a discount of anywhere from 4 percent up to 10 percent. Certainly any rebate is welcome in light of the cost of gasoline. 4% is good and 10% is even better. But there may be a way to cut your cost of gas even more. Maybe even to 14%.

Here's how. Many gas companies offer pre paid gas cards or gas gift cards. In many cases these prepaid cards will offer a bonus or discount. For example in some cases you can purchase a $50 gas card for $48.

The card allows you to buy $50 worth of gas but you only pay $48 for it. That is equal to a 4% discount.

If you purchase the gift or prepaid card with the gas company card during the initial period you are getting a 10% rebate on that purchase.

If you purchase a prepaid card that provides a 4% discount, the $48 dollar card for $50 dollars worth of gas, you are adding to your savings.

You are getting a 10% rebate on the prepaid card purchase using the rebate credit card and you are getting a 4% savings by purchasing the prepaid gift card. Therefore the total you are getting is 14%. The 10% savings + the 4% savings or 4+10=14. Now you have just saved yourself 14% on your gas purchase.