Use hot water
I’m pleasantly surprised at how well this product works. I used it to clean my 7.3 Power Stroke Diesel. I used 4 parts HOT water to 1 part of product. Sprayed it on my engine while it was cold and underneath my truck. Waited 10 minutes and rinsed with cold water. Everything that was sprayed, came out great. What I really like is there is no petroleum products in this cleaner. Leaving a residue after cleaning.
Rating: 5 stars