Haven't used Awesome. It may remove wax on the sidewalls when you rinse it off as will most cleaners. You also want to consider that it may damage the rubber over time. Probably best to contact the manufacturer of the particular type of rubber roof (EPDM or TPO).
303 is a good UV protectant for rubber but is expensive and will wash off with a couple of rain falls.
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Dave and Ivy
2020 North Point 315RLTS
Ram 3500/Aisin CC, SB, SRW, Superglide
Firestone Ride-Rite Air bags, TST507 TPMS
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