NASCAR and Charlotte Motor Speedway have started the process of enhancing an additional racing groove for Sunday night’s Coca-Cola 600 at Charlotte Motor Speedway (5:30 p.m. ET, FOX).
The conditioning of the track surface includes the addition of VHT, a traction agent also used at Bristol Motor Speedway earlier this season, in the upper groove of Turns 1 and 2 and Turns 3 and 4.
A tire-dragging machine, also called the ‘Tire Dragon’ tool, will also be utilized in order to add Goodyear rubber into the higher lane.
The move is being executed to promote more side-by-side racing, with the hopes that drivers will have an additional groove available to make passes.