Sinclair in Appleton $50 Gift Card. This fall, make your trips to Appleton even better with Sinclair! Fill up your tank at their conveniently located Sinclair gas station, where you'll find top-quality fuel to keep you on the move. And while you're there, don't forget to stop by their convenience store. They have everything you need for your autumn adventures, from snacks, Burgers, Pizza, Fried food, and daily specials.   Make the scenic drive to Appleton to Bad Apples Tobacco and Vape and Sinclair Convince Store a top adventure.