Hot Shot's SecretAdrenaline R82+ Diesel Racing Fuel Additive is a competition diesel performance additive, the company stated, that is verified by ASTM D613 and D6079 testing to raise cetane by up to 34 points and offer lubricity protection. R82+ also acts as an upper cylinder lubricant and is suitable for both mechanical injected diesel engines and common rail applications and is intended for off-road use only. The additive also meets the requirements of NTPA, PPL, NHRDA, and ODSS when used with a ratio of one quart of R82+ to every four gallons of diesel fuel.