Sounds like the wheels still have some kind of coating from factory/dealer. It's probably on the shiny metallic surfaces, too. You'll have to remove it before painting. You could try Dawn dish washing liquid first, then maybe naptha, acetone, or lacquer thinner,Great to hear about the tires. I'm just about sold on the Open Country. I also remember you say that you only painted the chrome surface of the wheels, not the entire wheel. I started to tape off the wheels but both painters tape and masking tape wouldn't stick at all on the black part of the wheel. What did you use to tape off the wheels?