A fuel fee must be paid if the vehicle uses a fuel that is taxed at a lower rate than motor petrol or diesel oil.
For example, you must pay a fuel fee if you use fuel oil in a passenger car instead of diesel. You must also pay a fuel fee if you use liquefied petroleum gas (LPG), natural gas or other comparable gaseous fuels as fuel in a vehicle.
The use of such fuel is generally confirmed through a fuel sample taken by customs officials or the police. Traficom imposes a fuel fee if the fuel system of a vehicle contains even a small amount of a fuel subject to the fuel fee. How and where you use the vehicle does not matter. If a fuel fee has been imposed on your vehicle, you cannot export the car from Finland before the fee has been paid.