My SOB was getting dull and oxidized, was getting ready to trade in for my Montana, tried the orbital and meguires, too much work for me. google machine found
https://www.nationaldetailpros.com/rv-detailing
Took the father/son team a good 10 hours, but it looked brand new again.
they have different packages, i bought the outside only, it was about $20 a foot
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The "Black Pearl"-2017 3731FL Legacy Package
2017 F-450 Platinum, 6.7 PSD