I could not find where to buy the RM 900. However, I got a good tip about using Kerosine. Which I had already at home. It works but slow, however, that's better than anything else I have tried.
Here are a few sections I cleaned up. I sprayed it on with a spray bottle, and then used a brush to loosen it up, and wiped it off with rags. I put a plastic on the floor and some oil try on it.
It looks like the factory chip guard is light gray.
Thanks for all the tips.
Cheers
Engelbert