Gas prices are expected to climb close to $2.63 a gallon, 20 cents higher than at this time last year, while a record-high of nearly 980 thousand North Carolina drivers will be travelling by automobile this Memorial Day weekend, despite these rising prices. But there is another factor drivers should watch out for on the road this weekend.

Those traveling this weekend should be on the lookout for gas stations that sell E15 gasoline, a form of fuel that contains 15% ethanol made from corn in order to reduce dependence on fossil fuels in the US.

“While it has been permitted by the federal government… pushed a little bit because Congress said we wanted reduce our reliance on fossil fuels,” says manager of public affairs for AAA Carolinas, Tom Crosby, “it has not yet been approved by 95% of the manufacturers that put cars on the road today.”

Crosby warns about the risks that could result from using E15 in vehicles that are not approved. “It can damage your engine; it can invalidate your catalytic converter. Many manufacturers will void the warranty that you have if you use E15.”

Those driving, especially to locations out-of-state, are advised by Crosby and AAA Carolinas to check service station pumps and consult the owner’s manual for their particular vehicle to confirm they are using the correct fuel.

To better estimate fuel costs, click here to input starting city, destination, and the make and model of their car.