Yeah S100 total cycle cleaner will leave spot unless you rinse thoroughly. Another thing to think about is not washing your cycle or any vehicle for that matter in direct sunlight. This will cause the minerals in water to remain on the surface of the vehicle after the water evaporates and can cause spotting/damage to the finish.I first noticed that part on my Scout sometime after a wash using S100.
It didn’t get wiped down like the paint and chrome. It was fairly evenly covered in white spots. I was able to clean that off but it remains speckled as pictured here.
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The instructions for S100 Total Cycle Cleaner says something about not letting it dry on surfaces, and incomplete rinsing off could leave a white residue.
Here’s the other side.
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I was thinking it’s probably something about the paint of this part, and the possibility of road salt.
I have applied ACF 50 (metal protector) only once a couple years ago, and S100 Engine Brightener half year ago.
I mostly just use the S100 Detail+Wax, only a complete wash twice a year.
My honest opinion, it was very much like the ACF 50 stuff, mainly an oily coating.How did the S100 engine brightener work for you?
yes I have the same spots in the same place but also on my horn.