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      12-11-2009, 10:13 AM   #4
BK
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Drives: 330i
Join Date: Feb 2006
Location: Washington DC

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2006 330i  [9.00]
I use touchless quite a bit in the winter, too. The soap is harsh where I am, but not so bad that it completely strips the Zaino. The difference I see in Zaino beading goes from about 6+ months to about 3-4 months. Of course, the salt on the roads could also have something to do with it.

All in all, I hate the touchless gas station wash -- I still see a bit of a "film" on the car when it is done, and it doesn't clean the wheels -- but it's a necessary evil because I'm not going out in 20 degree weather with my ONR, only to get more snow and wet, salted streets the next day.

I'd just pick the option where it sprays the undercarriage and try to avoid it dripping wax or Rain-X all over the car. Around here, that's the "middle" option of 3 in nearly all the spray & wash places.
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