How to Safely Wash Your Car in the Winter
 

For those that it applies to, I thought this would be helpful in your fight to keeping your FR-S pristine throughout the winter.

http://www.detailedimage.com/Ask-a-P...?landing_id=49

good info there.

I prefer to rinseless wash in the winter (ONR). Carefully of course when its real dirty. Filling buckets in the tub with warm water makes the process way more comfortable no matter how you're going about it.\

Also, I tend not to wash below 40 degrees. Even with the warm water, ONR seems to behave a little 'funny' around the 40 degree mark. Something with the glossing agents and the cold panel temps I think.