Engines thumb|Honda Outboard motors Honda engines powered the entire 33-car starting field of the 2010 Indianapolis 500 and for the fifth consecutive race, there were no engine-related retirements during the running of the Memorial Day Classic.
Engines thumb|Honda Outboard motors Honda engines powered the entire 33-car starting field of the 2010 Indianapolis 500 and for the fifth consecutive race there were no engine-related retirements during the running of the Memorial Day Classic