You have fiberglass panels.
Buffing does not remove the oxidization, I've tried.
Waxing does not leave a good appearance.
The best product specifically made for fiberglass is Poly Glow.
I've used on 2 motorhomes with great looks like new finish results.
Get the cleaner to remove the oxidization and the finish to make it look like new.
Works great on any fiberglass motorhomes, boats, etc.
I highly recommend it.
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