6']['9 said:
your gonna get hairline scratches regardless.. .
I dunno, I avoid such marring on my "good" vehicles. But then I don't live in an area like the SW where you have lots of airborne grit either.
I hardly *ever* have to polish out wash-induced marring on the Jag, the S8 or even the dog-hauling minivan. But when somebody else washed the S8 due to the "deer incident", they marred it something awful by my standards. And those were "competent" people who were trying to do it right. After polishing out what they did to it, I've washed it many times with no marring at all. I've only had to polish it and the minivan twice each since I got them (and the minivan gets used hard almost every day of the year).
But on the other hand, I wash my wife's car the "normal", two-bucket, way most of the time and yeah, it has wash-induced marring. I'm quite confident that I know what does *and what doesn't* cause marring in my situation.
Wash-induced marring can be avoided if you work at it. Check out
My Wash Technique .
Between washing the way I do, washing *frequently* and keeping plenty of slick LSP on the vehicles, I don't have much trouble with marring.
Things you can try, short of washing the way I do:
Use a higher-lubricity shampoo. GC isn't slippery enough for my taste.
Never let the vehicle get too dirty. Once it gets dirty enough, nothing will prevent some marring except possibly using a foamgun. And even then it's tricky. You want to get the dirt off before it bonds to the surface.
When washing, try to "dislodge and flush away" the dirt as opposed to "scrubbing" or wiping it off. Dirt that sticks to the mitt will scratch if you move the dirty mitt across the finish with any real pressure.
Instead of rubbing the wet mitt against the panels, use it this way- hold it open in the wash bucket with the cuff pointed up; it'll fill with wash solution. Hold the cuff shut so the mitt's like a bag full of solution. *Very* gently move the "mitt/bag" across the panel, with very little contact pressure, while the solution seeps out of the mitt. If the mitt is obviously getting dirty, rinse it out even if you've only cleaned a very small area. When the mitt is empty rinse it out and move on. Repeat as needed, better multiple gentle passes than one harsh pass. Never let it touch the finish with a dirty mitt and/or unless solution is seeping out of it to lubricate the surface.
Have plenty of mitts, and if there's any possibility that one hasn't rinsed clean, use another, clean one.
It only takes one careless moment to mar the finish.
Remember that more time spent washing can mean less time spent polishing (and a thicker, longer-lived clearcoat).
Getting a foamgun will help more than anything else you can try.