Go to Wally World and get a spray bottle of Spot Shot. Don't get the spray can.
Spray it on and dob it off with a damp cotton towel. May have to do it more than once or twice. Rinse towel often in clean water.
Good luck. It worked for me.
Ron
Betty and Ron
2002 Bounder 31W
8.1 with 5 speed Allison
2 slides
2005 Colorado toad