Kevin Harvick has a pretty simple explanation for why he ran out of gas with about 40 laps remaining in the Cup race last Sunday at Sonoma.

“It’s just flat-out doing something that your car won’t do,” Harvick said Thursday prior to Nationwide Series practice at Kentucky Speedway. “They knew exactly how far the car would run on fuel and they tried to stretch it one more lap.

“That’s the bottom line. They tried to stretch it to a two-stop race when we had planned to do a three-stop race. That just bit us.”