Yeah I have put mine in muddy water up to the headlights and haven't seen anything in mine either. One thing to watch for, even just with water, is grass and other debris getting in there. Something else I heard on here, by the serious mud riders, is to look at the back of the oil coolers too. The front will look fine, but the back will still have a solid wall of mess. Just some more info for you to watch for. Hope it helps.