If your vehicle has painted stripes, use the lacquer thinner or enamel reducer to test a spot and see if the paint comes off. Most vehicles have clearcoat paint that prevents the stripe paint from staining.
Another way, is to block sand the stripes with 1500 or 2000 grit Wet-n Dry paper. When finished, slide over the areas with a low speed buffer and a low cut compound. I know this takes some skill and experience, but it does a good job, with little impact to the clear.
This guy did a write up using Easy Off oven cleaner;
2006 4.0 5 spd auto 4x4 Super Cab
BF Goodrich Commercial Traction T/A's
Royal Purple Throughout
Alpine Head Unit with some Infinity Noisy Stuff