Well I found a new way to clean my rig. Someone told me about it and I was skeptical. So I tried it and it worked well for me. He said mix equal parts purple power with his wife's liquid laundry detergent. Spray it on with a pump up sprayer. Then pressure wash. Worked a hundred time better for me than a cannon. I am impressed, especially on my axles, motor, links and shocks. The panels still needed a little more love .