The underside of my new project is throughly coated in 35 years of dirt and fluid leaks, and the gas powered pressure washer we have at the shop is clunky and would be a total pain in the ass to drag around under a truck. I felt that was a good enough excuse to buy more tools. I almost bought a cheap Harbor Freight pressure washer, but I did some research and found this on amazon with great reviews for only $20 more.
I'll post pics and videos of it in action pretty shortly. Here's the amazon link:
Here it is on Amazon.