Hot Shot's Secret (HSS)––the manufacturer of high-performance race oils, fluids, and lubricants for diesel motorsports––has announced a major increase in support for diesel racing.

HSS has announced it will extend its title sponsorship of the Outlaw Diesel Super Series (ODSS) for three years (from 2026 through 2028), ahead of its upcoming Rudy's Spring Truck Jam in Rockingham, North Carolina, on April 24-25. Hot Shot's Secret's Adrenaline Outlaw R100+ diesel race fuel will also become the "Official Fuel" for ODSS, joining the brand's Diesel Extreme as the series' "Official Fuel Additive."

ODSS, which celebrates its 10th anniversary season in 2026, is a multi-class, six-race point series with events at tracks in North Carolina, Kentucky, Indiana, Ohio and Tennessee. 

In addition, HSS has also announced an extension of its title sponsorship of the National Hot Rod Diesel Association (NHRDA) for the same length of time: three years, from 2026 through 2028.

NHRDA was formed in 2003 and is known to be among the largest and longest-running diesel motorsports organizations, offering drag racing, sled pulls, dyno competitions and a national championship series culminating each fall with the World Finals. Its next event is Truckin In Tulsa, May 22-23, in Tulsa, Oklahoma. 

The ODSS and NHRDA announced a new partnership in late 2025 for rules and schedule alignments, allowing for more accessibility in the sport of diesel racing.