Friday practice:

for the Pure Michigan 400 Sprint Cup Series race at Michigan International Speedway is over after 90 scheduled minutes, the top-five, slowest, notes:
#48-Johnson 197.450
#5-Kahne 196.861
#55-Martin 196.786
#29-Harvick 196.705
#55-Martin 196.448
slowest: #32-Bell 187.018 & #36-Blaney 179.739
notes: There was an early caution after #51-Busch dropped fluid on the track from a broken oil line. #43-Almirola spun off turn 4 but did not hit anything. #83-Cassill also had what appeared to be an oil leak, bringing out another caution.
This practice will determine the order for qualifying, which is scheduled for 4:10pm/et Friday and will be aired on SPEED.
See speeds and laps run on the Michigan practice 1 speeds page (pdf).(8-17-2012)