7 Ways to Save on Gas

That budget road trip you planned for the family this summer is starting to look a lot more expensive now that gas prices are on the rise.

Some of the spike is seasonal. Increased demand -- from all of those other families hitting the road -- tends to lift gas prices each summer, says Paul Hess, information analyst at the Energy Information Administration (EIA). Oil prices have also been creeping higher in recent weeks as optimism grows on Wall Street that demand for crude will rise worldwide once the global economy stabilizes, says Tom Kloza, chief information analyst at Oil Price Information Service, which monitors oil prices in North America. And further boosting prices at the pump is an Environmental Protection Agency requirement to add a fuel blend to gasoline in certain regions during the summer months that reduces ozone damage. This additive alone can add another five to 10 cents to the price per gallon, says Kloza.

As a result, regular unleaded gas costs $2.67 a gallon, up 16% from $2.30 a month ago, according to AAA’s Fuel Gauge Report. According to the EIA, gas prices won’t begin declining significantly until fall.

In the meantime, drivers can lessen the pain at the pump by taking some inexpensive and easy steps. 

Here are seven ways to save on gas this summer.

Sure, it’s convenient to visit the gas station closest to home, but it may not be the best place to fill up.

To find the cheapest gas prices, compare prices at stations near your home or along your commute. Price-comparison web sites like GasBuddy.com and BillShrink.com let you plug in your daily destinations to find the most affordable gas stations on those roads. The price difference per gallon can be up to 50 cents, says Samir Kothari, co-founder of BillShrink.com.

Last summer, gas stations rolled out higher prices for consumers who paid with credit or debit cards (the idea was to pass along the merchant fees associated with such transactions). Many gas stations are still at it, which means those who pay in cash can often save. ARCO (a subsidiary of BP (BP)) stations, located in California, Washington, Oregon, Arizona and Nevada, for example, only accept cash and charge between five and 10 cents per gallon less than competing stations. (ARCO recently introduced a debit MasterCard which consumers can use to purchase gas at no extra charge. Other debit cards are accepted at these stations, but there’s a 45-cent fee.)

Cash discounts are popular in California, Connecticut, Florida, Michigan, New Jersey and New York, according to GasBuddy.com. (Discounts for cash-paying customers are legal in every state, as long as the gas station makes it clear that prices are different when you pay in cash vs. credit or debit, says Jason Toews, cofounder of GasBuddy.com.)

In addition to frozen food, toiletries and appliances, Costco (COST), BJ’s and Sam’s Club sell discounted gas at some of their locations.

“It depends on local market conditions but usually they sell it cheaply enough so that they’re beating out the competition,” says Toews. For example, at a BJ’s location in York, Pa., regular unleaded gas is selling for $2.59 a gallon. Local competitors there sell gas for $2.61 to $2.65 a gallon, according to GasBuddy.com.