Start Your Engines! Fuel System Revitalizer, 4 oz: * For quick, reliable starts of power equipment right out of storage and during the season * Restores volatility to stale fuel * Removes gum and varnish from fuel system components * 1 can treats up to 2 gal of fuel * Can be used with fuel tanks as small as 8 oz * Safe for 2-cycle and 4-cycle engines * Not for use in diesel engines