Originally Posted by I-Want-A-Jeep
I've always thought it's better to have the engine cool before hosing it down. May not make a difference but that's my thought..
Ive herd that it could break your engine block if its hot and you spray cold water on it.
Have not clue if thats true, but it does sound logical. But on the other hand, your engine is hot when you drive through a cold river or mud puddle...