Fuel Spill

Some depends on the fuel nozzle angle. I use 90 degrees, (handle side ways) with accessory switch on to see the gas gauge. It depends on your car, and filler tube. 180 with handle up, very bad for my car, gets gas in fast, will not shut off. The gauge is slow, so when it hits 3/4, I slow fill rate to first click. Some depends if the pump shutoff is working. I usually use exon, they seem to maintain things.