Engine Stor® Fogging Oil - 13oz As fogging fluid, it protects outboard motors, marine engines & internal combustion engines, insures longer life. As long term metal protectant, it keeps pistons, rings & cylinder walls corrosion free. Also protects electrical connections in use/storage.Applications:As a corrosion inhibitor, fishing reels, metal parts, gasoline engines only, marine engines, outboards, safe for use in gasohol, tools (hand), tools (power)