I love Wolfgang products...pretty much all I use...my favorite would have to be the paint sealant and the exterior trim sealant...just ordered the cockpit trim sealant and can't wait to try it out.
Got my tornador black last week...running it with a rigid 5 gal portable air compressor...detailed 23 police cars in the last two days with it....worth every cent...cut my cleaning time in half...cleaned the nastiest stuff with ease.
I had the same question last week and Mike helped me out. Do an advanced search for "air compressors". There is a ton of helpful information and interesting reading.
Police Officer currently assigned as a recruit instructor at our training academy. Certified firearms, driving, defensive tactics, taser, and field sobriety instructor.