I used this stuff as a pretreat for some laundry I was doing...WORKED AWESOME. I would however STRONGLY recommend you use a good wet/dry vac for vehicle applications.
In a 32 oz spray bottle, fill 1/2 way with HOT water, add 1 scoop of OXYCLEAN, fill the rest of the bottle with Castrol Super Clean.
Doing small sections at a time, spray on the cleaner, give it a couple of minutes, use the wet vac to pull out the cleaner & crud...then, using a second spray bottle of clear water, spray the area & use the wet vac.
Repeat steps as needed.
Don M
'02 Cavalier LSSC
2200 DOHC