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equ · 05-10-2018, 12:16 PM

Even with Sonax, rinse with plenty of water. It is very strong IIRC. BMW wheel cleaner (in those white bottles) may be Sonax, I'm not sure. It turns red after a minute.

05-10-2018, 12:16 PM	#5
equ Alphanumeric Join Date: Aug 2005 Carmudgeonly Ride: 981S, 340i Posts: 9,584	Even with Sonax, rinse with plenty of water. It is very strong IIRC. BMW wheel cleaner (in those white bottles) may be Sonax, I'm not sure. It turns red after a minute.