Either wash wash the wheels first with a seperate wash mix, or I wash them last using what was left of the wash mix. I only reuse the ONR wash if it is *really* clean, though.
**I use ONR after a high press. wash /w foam cannon.
Like with any wash, you always do top down, leaving the dirtiest parts for last.
Try using ONR at QD strength of 6-8oz/gal from a hand held (garden) pump sprayer and then a bucket of rinse water with a grout sponge - spray, wipe w/sponge, then dry w/MF towel one panel at a time. Rinse sponge ad needed. (kind of a cross between a wash and QD).
Note: Spray ahead for dirty areas (tires/wheels) for more dwell time.
I will wash from top to bottom, front to back. Do the door jambs and finish off with the wheels and fender wells. I use 3 gallons total in one window cleaners bucket. Make sure you don't leave your mitt or sponge in the bucket while cleaning the wheels and wells they will suck up a lot of the dirt.
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Just call Your Dent Guy