What's the best way to remove a dealer sticker?

Take it to the dealer if not it's a 6 beer job. Beer while collecting your supplies - hair dryer, plastic razor blade and clay bar for removing sticker glue. Beer while thinking about your approach, two beers while remover stickers and finally two more while admiring your handy work. Good luck!

 

Belt sander w/60 grit.

Just kidding.
Same as everybody else is saying, heat gun or park it somewhere sunny on a hot day and it'll peel right off. WD40 on a microfiber towel or similar will get rid of any glue residue.

 

Geez....the solution to this is simple.

Just sell the truck and buy another one without the sticker.