Under-carriage
I've heard of using a sprinkler under the truck for a half hour or an hour. Then spray it off with a hose. In theory it should work well, the sprinkler would loosen up the caked on stuff well then you could spray it off.
Maybe I'll just have to hand-wash it. I normally wouldn't go that far, but I found myself stuck in some mud the other day and it really did a number down there. Having a clean undercarriage makes me feel better for some reason. Also I don't want to void my warranty when the shop sees mud everywhere down there. But it's mostly just for my peace of mind.
You might want to try a lemon spray on furniture polish like pledge or DG prinate label. I use it everywhere. underhood, whel wells...once you get heavy dirt off, spray on liberally, wait a fgew minutes and wipe off with clean cloth
Hope it works for you
Hope it works for you





