When renting a vehicle from Six Rent a Car, it is typically required for customers to return the vehicle with the same amount of fuel as it had at the time of pick-up. This is often referred to as the "full-to-full" fuel policy. Customers should carefully review the rental agreement at the time of vehicle pick-up, as policies may vary by location and specific rental agreement. If a vehicle is returned with less fuel than it was provided, customers may incur refueling charges, which are usually higher than local fuel prices. Therefore, it is advisable to refuel the vehicle before returning it to avoid any additional costs. For the most accurate and up-to-date information, customers can refer to the rental agreement or the current web page outlining the specific fuel policy.