I have a 80 gallon tank in the bed of my diesel pickup. It and the factory tank will hold 110 gallon. So I go to the truck stops which has the large hose and nozzle for tractors trailers.
You don't find the big nozzle at the car bays.You have to knock out the flapper valve in the stock tank or it won't fit. Had a friend who put diesel in his motorcycle that didn't work well,but it was really clean when we torn it down.