Insurance is only by cash or you can buy insurance here in Doha through Al Khaleej Insurance Company Bank Street. Only ADNOC fuel stations in Abu Dhabi accept credit cards, you may not have to refuel your car if you have double fuel tanks. My Nissan Petrol dose 650km with two tanks and I had to refuel at Dubai - Abu Dhabi border only. Petrol in Abu Dhabi is QR4.25\Gallon in Dubai QR6.25\Gallon.
Insurance is only by cash or you can buy insurance here in Doha through Al Khaleej Insurance Company Bank Street. Only ADNOC fuel stations in Abu Dhabi accept credit cards, you may not have to refuel your car if you have double fuel tanks. My Nissan Petrol dose 650km with two tanks and I had to refuel at Dubai - Abu Dhabi border only. Petrol in Abu Dhabi is QR4.25\Gallon in Dubai QR6.25\Gallon.