Fueling a rental car might seem straightforward, but the decisions you make at the pump—or even before you pick up the keys—can significantly impact your total trip cost. Rental agencies often charge premium rates for fuel if you return the car underfilled, and prepaying for gas through the rental company can be convenient but expensive.
Here are the best ways to fuel a rental car and avoid unnecessary fees.
- Skip the Prepaid Fuel Option
Rental companies frequently offer a prepaid fuel plan where you pay in advance for a full tank at a fixed rate. While it might sound convenient, you’ll pay for the entire tank regardless of how much gas is left when you return the vehicle. Unless you know you’ll return it completely empty (which is unlikely), it’s rarely worth the cost.
- Best practice: Decline the prepaid fuel unless you’re on a tight schedule with a drop-off near empty.
Learn more: Enterprise Fuel Policy
- Return the Car with a Full Tank
This is usually the most economical option. Most rental agreements require you to refuel the car before returning it, or they’ll charge inflated rates—sometimes double the local gas price.
Use apps like GasBuddy or Waze to locate the cheapest gas stations near the return location. Avoid filling up right next to the airport or rental lot, where prices are often highest.
- Use Gas Price Comparison Apps
Before your trip, download a gas price app to stay informed on the best fuel rates during your rental period.
- GasBuddy: Offers real-time fuel prices, station reviews, and price alerts
- Waze: Integrates gas stations and prices into its navigation system
- AAA Mobile App: Great for finding both fuel and service stations for members
- Consider a Cashback App or Gift Card Strategy
If you’re planning ahead, using cashback tools can save you even more. Apps like Fluz let you buy gas gift cards online or pay at the pump using a virtual card to earn cashback instantly. This works especially well if you’re refueling at national stations like Shell, BP, or ExxonMobil.
- Don’t Overpay for Convenience
Rental companies often partner with nearby stations or recommend certain brands, but these aren’t always the cheapest. Venture just a few blocks away and you’ll likely find better rates.
- Use the Right Payment Method
Some credit cards offer bonus rewards for fuel purchases, which can add up during long trips. Check your card’s terms—many offer 3% to 5% cashback at gas stations.
- Keep the Receipt
Always keep the gas receipt from your final fill-up, especially if you’re returning the car after hours. Some agencies may charge a refueling fee if there’s no proof, even if the tank is full.
Final Thoughts
The cheapest way to fuel a rental car is simple: skip the prepaid option, fill up right before you return, and use tools like GasBuddy and Fluz to find the best deals. With just a few smart choices, you can avoid inflated charges and keep your travel budget on track.
