How would you apply it. Do you use full strength, use sponge, a brush etc? I would imagine a sponge only because otherwise I and the interiour would get all wet from a dripping brush.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member