MIAMI BEACH, Fla. (AP) -- People familiar with the punishment say NASCAR has fined Brad Keselowski for comments he made criticizing electronic fuel injection.
The people spoke to the Associated Press on condition of anonymity because NASCAR did not publicize the fine.
NASCAR has been privately punishing drivers for making disparaging remarks about the series over the last two years.
The fine is believed to be $25,000.
Keselowski said last week during an appearance at the NASCAR Hall of Fame that the move to fuel injection is "a disaster." He also said NASCAR was pressured into moving from carburetors to EFI by "green initiatives" and called the process "a media circus."
NASCAR in the past quietly fined Ryan Newman for criticizing racing at Talladega, and Denny Hamlin for posts he made on Twitter.