Prestone AS237 Premium Starting Fluid - 10 oz. Designed to start stubborn engines fast in cold weather Effective down to -65F Start engines with either too little fuel or too much, as in the case of a flooded engine Safe and effective in gasoline and diesel engines, including cars, trucks, lawnmowers, snowmobiles, marine, and construction equipment Designed to ensure ignition because of its broad range of flammability