This has to be a common problem though not everyone may care. I notice water spots on the fins of the supercharger, the aluminum shiny parts. What's the cleaning approach? Vinegar and Q-tips etc.?
2019 SGM Z06 M7 Coupe
Z06/07 Coupe, A8, 3LZ, Comp seats, CFV.
A good chrome and aluminum polish should take those right out.
2015 blade silver Z51 3LT A8 Stingray, jet black interior, competition seats, Z51 style chrome rims. Suntek clear bra, carbon flash metallic custom stinger stripe, side mirrors and rear spoiler.
1986 two-tone silver over grey C4 survivor coupe with slate blue interior and only 47k miles.