What is the best way of cleaning this rubber trim please

[Rocking Rivet]

1, As you can probably see, the rubber trim is very dirty. What is the best way to clean it without damaging it?
2, After getting it back to it's original condition how should I protect it?

Thanks in advance for your advice and tips

 

[bigwood]

Our Rienza has the same trim and I found something called Pink Stuff in the kitchen cupboard. It didn’t need much on a damp J cloth.
I don’t know of anything to put on afterwards but it looked clean for quite a while. The dresded black streaks came back first.

 

[Smudger55]

View attachment 685502
1, As you can probably see, the rubber trim is very dirty. What is the best way to clean it without damaging it?
2, After getting it back to it's original condition how should I protect it?

Thanks in advance for your advice and tips

I've found silky cream quite good:
Amazon product ASIN B0035ACI7U

 

[bilM]

This is what I use

 

[Rocking Rivet]

This the result using Silky, which I think is pretty impressive. It does require a bit of elbow grease though

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[bigwood]

Glad you have found something that’s shifting the muck. You’re Nuevo is half the size of our Rienza. There’s a lot of that trim to clean. It was a once a year if you’re lucky job.

 

[kingmid]

Our Rienza has the same trim and I found something called Pink Stuff in the kitchen cupboard. It didn’t need much on a damp J cloth.
I don’t know of anything to put on afterwards but it looked clean for quite a while. The dresded black streaks came back first.

I too used Pink Stuff to clean the same rubber trim on our Broadway. Used it carefully on the rubber only and cleaned it all off as I went along. Worked a treat.