Good service, but refuelling pricing needs more transparency
Overall, the rental experience was good, but the way the refuelling charges are presented is unnecessarily confusing.
I specifically opted for the additional “Refuelling/recharging service” during booking and paid €27 for it. The description states that you can return the car with any amount of fuel and SIXT will refill it at the normal pump price, with “no refuelling penalties or surprise fees.”
However, the way this option is presented is quite misleading. Seeing a €27 charge for “Refuelling/recharging service” in the prepaid booking gives the impression that you are paying for the convenience of returning the car without refuelling. Only after receiving the final invoice did it become clear that the €27 is purely a service fee, with the actual fuel then charged separately on top.
I understand the pricing structure now, but €27 simply for the service of putting a relatively small amount of fuel into the car feels excessive, particularly when the option is marketed as a convenient way to avoid refuelling penalties and surprise fees.
I was otherwise happy with SIXT and the rental experience, but this particular extra needs to be presented much more transparently during booking so customers clearly understand that the fee itself does not include any fuel whatsoever.
Reply from SIXT España