Product does a great job. Truck was pretty filthy so the first go round i sprayed it on, let it sit then rinsed it off. Second go around, sprayed it on then washed the truck with microfiber towels and then rinsed. I thought i had done a pretty through rinse but apparently not, the drivers side did have pretty significant streaking after it dried but the passenger side was perfectly clean. Trial and error on my part, I'm sure. Foam cannon worked exceptionally well but did have a slight leak betwe...