Two ways to get your decal:

Stop by any participating Sunoco Station and pick one up for free. Find a Sunoco near you
By mail: Send a self-addressed stamped envelope along with a 3x5 card with your name, home mailing address, age, and phone number to:

Sunoco Free Fuel 5000 Sweepstakes Decal Request
c/o Department 585547
P.O. Box 5046
Kalamazoo, MI 49003-5046