This is opening Pandora's box...
This post sponsored by 303 products.
I just spent 6 hours cleaning up after a 3 hour ride through smoky wild fire ash and that was not much fun. We towed home with the cover off because everything already had a haze on it from the night before - including the cover, and ash is very abrasive. Amazing how nasty cushions can get just being exposed.
Can you tell the before and after?
I would suggest pulling out everything you can, scrub the hull top to bottom. Follow up with at least a quick detailer if not a wax. Park it on a hill and let it drain as much as possible.
No hill? Floor jack it.
Scrub down all cushions. Make sure they are VERY dry before putting back in. Then treat with your preferred product. I've had good luck with 303 (cleaner and protectant).
Vacuum everything out.
Make sure everything is very dry before covering any of it up. I run two fans all winter long under the cover, even parked in the garage.
I used to be way more anal about everything being spotless before winter but have learned that it doesn't make a huge difference in the end. Just being clean and dry is 99% of it.
So when is this "old enough to know better" supposed to kick in?
2001 MobiusV - Slightly Modified...