Customs Extremely lax. Non-toll Mountain Passes N22's Envalira Pass, L'Hospitalet to Andorra. Fuel Unleaded gasoline is known as either essence sans plomb or gasolina sin plomb.
Diesel fuel is known as diesel.
Fuel is much cheaper in Andorra than in France or Spain. Driving Snow tires or chains are essential in the winter. Police are empowered to collect fines on the spot. Police are empowered to collect fines on the spot. Other regulations approximate those of France.