I'm a proud FF user since 2007! But I've been using this product by Loctite called C5A for battery terminals on my trucks & trailers for a loong time. C5A is an exclusive formula that suspends copper and graphite in a high quality grease. Protects metal parts from rust, corrosion, galling and seizing at temperatures to 1800°F. Tested to MIL-A-907.