Deep cleaning an off-road 4x4 Jeep, including underside and engine bay cleaning, and how to wash a very dirty car.

Editor’s Note: August 24, 2026: We are in the process of updating this guide and will share our findings once we test the Westinghouse WPX3400, a heavy duty gas-powered pressure washer, and further ...

Cleaning the C5 Corvette engine bay with a pressure washer as this race car gets a much-needed deep clean. After removing the ...