AAA is warning Georgia drivers not to let higher gas prices lead to risky decisions behind the wheel this Memorial Day weekend.

According to AAA, gas prices have reached their highest level in four years, with Georgia’s average price at $4.00 per gallon as of Wednesday. That is up from $2.92 per gallon during Memorial Day weekend last year.

AAA expects more than 44.9 million Americans to travel at least 50 miles from home over the holiday period, with more than 39 million traveling by car.

A new AAA survey found that more than two in five Georgians, or 42%, are letting their gas tanks fall closer to empty than usual before filling up.

AAA spokeswoman Montrae Waiters says repeatedly driving on a very low fuel level can damage the fuel pump and potentially lead to repair costs of $1,000 or more. AAA recommends drivers refill before the gas tank drops below one-quarter full.

AAA is also reminding motorists that putting off routine maintenance can reduce fuel economy and increase the chance of a breakdown. Underinflated tires, dirty air filters, overdue oil changes, and worn engine components can all lower gas mileage and cost drivers more over time.

During last year’s Memorial Day holiday, AAA responded to more than 350,000 roadside assistance calls nationwide, many involving preventable issues such as dead batteries, flat tires, and overheating engines.

Drivers planning holiday travel are encouraged to have their vehicles inspected before leaving home and to make sure tires, batteries, fluids, belts, hoses, and oil changes are in good condition before hitting the road.