Recommended for any fastener that threads into aluminum (spark plugs, studs, bolts..etc). Also recommended on any fastener near coolant and for anything else you’d like to remove in the future (exhaust nuts, oxygen sensor nuts etc) that can rust or gall. Good to 1600 degrees. Made in the USA.
available in the 1 oz. tube or the 8 oz bottle that has a brush built into the cap.