NRS 445C.190 “Diesel fuel of grade number 2” defined. “Diesel fuel of grade number 2” means a distillate from gas oil which is of low volatility and used in high-speed diesel engines generally operated under uniform speed and load. The term includes diesel fuel of the type “R-R,” generally used in railroad locomotives, and type “T-T,” generally used in trucks with diesel engines. (Added to NRS by 2015, 3601)