Oxidation. Try to get it removed as soon as you can, because the longer you wait the harder it will be. Don't know if that would be a warranty issue or not, but it shouldn't be so bad on a '13.
Jayco Designer 30 RKS Medallion pkg, Trail Air pin
'05 F350 6.0 PSD CC 4x4 DRW LB B&W Companion, Edge Insight
โCertainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living." Miriam Beard
