It is now official. Waltrip's team has also been punished for cheating at last Sunday's race.
Waltrip's vehicle had been impounded and a substance had been found in the intake manifold. Waltrip, a two-time Daytona winner, lost his crew chief and team director who were suspended indefinitely. Waltrip has also been docked 100 points, but will be allowed to participate in today's races that will determine the field for the 500.
NASCAR officials will not reveal what the substance was in the manifold. Someone with knowledge of the investigation told the Associated Press it was a property contained in jet fuel.
The substance that was found, which was described as an oxygenate, would boost the octane in the fuel, making the engine run better at higher horsepower.
Waltrip denied knowing about this substance and said he was "sad and embarrassed". He blamed the incident on an unnamed individual within his team.