Rental Car Fuel Policies Explained: Full-to-Full, Prepaid, and More
Updated Oct 23, 2026 · Hannah Breckett · 4 min read
The fuel policy can add a surprising amount to the cost of a rental. Here is how each one works.
What this article covers
When you compare rental prices, the fuel policy is easy to overlook. But it can make a cheap deal noticeably more expensive, especially on short trips.
Check which policy applies before you book, not at the counter.
Full-to-full
You collect the car with a full tank and return it full. You pay only for the fuel you use, at local pump prices. This is usually the fairest option. Keep the receipt from a petrol station near the drop-off point as proof, and return the car genuinely full.
Full-to-empty (prepaid fuel)
You pay upfront for a full tank, often at a price above local pump rates, sometimes with a service fee, and return the car as empty as you like. Refunds for unused fuel are rare. It only makes sense if you will definitely use the whole tank.
Same-to-same
You collect the car with a partial tank and return it at the same level. It sounds fair, but it can be hard to match the level exactly. Take a photo of the fuel gauge at pick-up.
Refuelling charges
If you return a full-to-full car without filling it, the company refuels it for you — usually at a high per-litre price plus a service charge. Allow time to refuel before the return, especially at airports where nearby stations can be limited.
Electric rentals
For EV rentals, policies usually specify a minimum battery percentage on return, with a charge if you return it lower. Check the policy, find out which charging networks the car supports, and allow time to charge before drop-off.
This is general insurance information, not legal, financial, or insurance advice. Coverage depends on your specific policy, insurer, and jurisdiction. Read your policy documents and speak with a licensed insurance agent or broker before making decisions.