The first real outward sign that something was seriously amiss was when Kyle Busch's pace suddenly fell away seconds after putting Earnhardt a lap down. The consistent lead he had enjoyed over his pursuers disappeared in just a couple of corners heading into the final lap.
Just seconds earlier, Keselowski had managed to get back past Ambrose for second place. That put him in the prime location to watch Kyle Busch sail off the track in the final run through turn 1. He put his foot down, but Busch came back on right in front of him and when Keselowski tried to brake, he found out just what Busch had experienced: the oil spray from Labonte's car made it impossible for him to slow down fast enough to avoid running into the back of the #18, and Busch was send into a spin into the guardrail.
Immediately after the race, Keselowski was under the misapprehension that the oil had come from Busch's car: "The #18 was leaking fluid something fierce and had no grip at all. When I caught him, it leaked really bad into one. He missed the corner because he slipped in his own oil.
"I got under him going into two and we all slipped in his oil, I hit him and spun him," he continued. "I mean, I had to say there was nothing I could do but there was literally nothing I could do. It was just one big giant oil slick underneath his car and I feel bad about that."
"There is 100 percent chance it came from somebody else," insisted Kyle Busch's crew chief Dave Rogers. "There is nothing wrong with this M&M's Toyota Camry. This car is fine, it's not leaking oil - look at the back bumper, there's no oil on it. There was another car in the field that blew a motor, went by us, we knew he blew a motor and instead of getting off the race track like he should have, he tried to stay out there and run the extra two laps and when he did he ran right through the groove.
"That was a mistake by another driver — oil on the field and the rest of us had to deal with it. Kyle was just the first one there," he continued. "Kyle hit the oil and it allowed the #2 car to get to us and he kind of raced us the way he raced us. It was a good car and Kyle gave a great effort."
The collision with Busch slowed Keselowski's own pace and left him with some bodywork damage that gave Ambrose the opportunity to close right up behind him, but both cars were barely hanging on because of the slippery surface and slid off onto the dirt on a number of occasions as they battled for the lead. Ambrose even rear-ended the #2 at one point - fortunately without sending Keselowski into a spin - and finally the two were side-by-side through the final corners of the race.
"It came down just running a whole lap against Marcos," said Keselowski. "I got in the oil and we'd slip up. He'd get by me and then he'd get in the oil and I'd get by him."
Even though Keselowski ultimately lost the race win by a nose, he was thrilled by the way the race ended with such high drama.
"Just really good, hard racing; some beating and banging. I think that's the way racing should be. It's great to race against guys like Marcos that you can run on, lean on and don't lose their cool and intentionally wreck you," he said. "That's what racing is supposed to be right there: a little bit of bumping and rubbing but none of that intentional wrecking BS. Marcos is a class act and that's the way racing should be."