Sure, you can use spray-on rug and upholstery cleaner on the rat fur too. Just don't soak it with anything including water. And vacuum well. I know one individual who uses clothes washing detergent (in a spray bottle) and a soft scrub brush... and a HOSE to clean the bottom half of his Scamp
door. The rat fur he has in his 5th wheel is the light
blue and the Scamp
is a 1993 model and the door fabric looks brand new.
I'm not advocating anything, just passing along what I've seen. YMMV