InStant Fill

Unscrewing a gas cap can sometimes be a difficult, dirty task. And replacing one after you forget about it and drive away can certainly be expensive. Eliminate the mess and hassle by switching to the InStant Fill. The trap door mechanism accommodates the gas nozzle, eliminating the need to remove and replace the cap each time you refuel. With the InStant Fill fuel cap, just insert the nozzle fully and squeeze the trigger. You'll never touch a fuel cap again!
Four different models fit over 80% of the cars on the road in North America. InStant Fill meets onboard diagnostic (OBD) emission specifications, so it will not trigger the "check engine" light on late-model vehicles.