The mandatory fuel to be used in all cars during all on-track events at the 2021 Charlotte Motor Speedway Summer Shootout is:
Shell Regular
Shell Mid-Grade (Plus)
Shell Premium (V-Power NITRO+) pump gas
Renegade USLCI SPEC fuel
The Shell gas & the Renegade fuel is not permitted to be mixed. Competitors must use one or the other. E-85 & Shell non-ethanol are not approved. The Renegade USLCI SPEC fuel will also be considered legal fuel to be run at all INEX sanctioned events