The American Red Cross is giving donors the chance to win tickets to the Indianapolis 500 this year.
In April the Red Cross is teaming up with IndyCar to help "refuel" the area blood supply with the incentive.
Organizers say your car cannot run without fuel, just as hospital blood banks cannot operate without life-saving resources.
Those who donate during the month will be automatically entered to win four VIP tickets to the World's Most Famous Race, in addition to being eligible to win a $1,000 e-gift card to a merchant of their choice.
The 105th Indianapolis 500 takes place Sunday, May 30.