I seriously doubt it. Like Bagger said, as long as you use an oil that meets the Harley specified standards, they can't deny an oil based claim. Personally I run Mobil 1 V-Twin 20w-50 and do all my own servicing. I also keep all my receipts for the oil and write the date and mileage on them that I did the oil change. I do use Harley oil filters and do the same with that receipt.
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2013 RGU, Vance and Hines Prop pipe and Fuel pak, SE AC, Wild One Chubby bars, Mean City Cycle Seat, Bright Ass tail light and LED turn signals, plus lots of chrome billet parts!