Prepare your surface

Step 1:Wipe in one direction with glass cleaner with ammonia
Step 2:Use wax and grease remover again wipe in one direction, removing any wax or dirt ( good substitute for wax and grease remover mineral spirits from Home Depot
Step 3: Again, with glass cleaner

note: you will feel a little drag on paint surface ,ifcits still slick repeat processs from step 1