Kyle Busch's day ended early at Michigan when his car went up in flames on Lap 54. Debris on the grille put the temperature well over capacity, blowing the endinge.
Through the first stint of the race, Busch mentioned on the radio how he felt the engine was a bit off. After a Lap 51 restart, it took just three laps for his Toyota to blow up.
"At least I had a 30 lap warning that it was coming," Busch said of his blown engine. It was shaking really bad and was going south for a while and had been building a lot of heat."
Since Busch's win at Kansas in early May, his season has gone in the wrong direction. He's had four straight finishes outside of the top 30, including a 30th in Dover, 33rd in the Coca-Cola 600 and 31st at Pocono. It's likely that the No. 18 will finish last at Michigan for the second consecutive season.
"The last four races have been really, really bad," Busch said. "It's a good think we started out the season the way we did. We had a lot of top fives and three wins. It gave us a good start and a good foundation, but we've got to get this look turned around and go in the right direction.
Heading into Michigan, Busch sat fifth in the standings, 75 points off the championship lead. The next race is in two weeks at Sonoma, where he is the defending winner.