PJ1 traction agent, tire dragging in use at Charlotte

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Charlotte Motor Speedway is doing as much as it can to improve the racing product and create opportunities for passing this weekend at the 1.5-mile track.

A blue tractor spent Friday dragging two sets of tires in the upper groove in each turn, an effort to freshen the area where the PJ1 traction agent was applied.

A track spokesperson confirmed to NBC Sports that the substance was added to the upper grooves in both corners on Monday and Tuesday.

The spokesperson was not aware of plans to add more PJ1 or to drag the tires on Saturday.

“The Xfinity cars ran on that PJ1 a lot and definitely activated it and got the grip definitely up there,” Joey Logano said after qualifying second for the Coke 600. “It’s hard for me to say what was what, but, overall, the car got faster and that’s all I really care about.”

Charlotte first used the traction agent in the Coca-Cola 600 last year and again in October. Its presence in that race wasn’t popular due to an uneven application of the substance.

Bristol Motor Speedway and New Hampshire Motor Speedway have also used the substance in the last two years.