Woolwax "HV" Wheel Well Grease

Works great for battery trays an under gas tanks on equipment

This HV goes on best in high summer heat, 90s! Brushes on like caramel syrup! One winter tested on frame section in rear wheel well, plenty of water splash and higher pressure hose at car wash, it refused to wash off much, FF failed this test the year before

This stuff is perfect for any area that gets a ton of water spray. You're not going to spray this on, you need to rub it on with your glove covered hands or with a medium stiff paint brush. Pro tip, do this when very warm out or scoop out the product you're going to use and heat it. It'll apply easily and then get super viscous when cooler, where it will likely stay forever. You just need a thin layer and a little goes a long way. Good for bolt heads, leading edge surfaces or low exposed areas, AC drain drip path on the frame, anything in a wheel well, hitch receiver, boat trailer, etc.