Unfortunately in the winter I get my Z in a car wash. Since my hose at home is turned off. I tell them not to wipe off because of the swirl marks they made before! I dont want this in my Z. Another thing I go to the brushless ones. So what are other Z owners experiences?

 

same here. With a high of 20 F everyday, hose is off. I go to the brushless. Doesn't clean very well but gets the road salt off. I don't even wipe it afterwards, because I know it's not totally clean. If it ever gets above 45, maybe I'll use a bucket and warm soapy water with a sponge.