I just did, successfully after 3 attempts with different paints. Krylon fusion sucks and so does duplicolor auto paint without priming first. The only way that is currently holding up and has been holding up for a month and a half now is (using all duplicolor) 2 coats of primer, 3 coats of auto paint and (I over did it cause I didnt want to take any chances) 5-6 coats of clear coat. I actually painted the lower valance, bumper filler and grille and they are all still looking great. The krylon fusion paint completely flaked off at the car wash after being on for 2 months and the duplicolor w/ no primer just chipped off from road debris after 3 days.