Profile: Nash Oil Co. is a gas-on-line firm producing gasoline, diesel fuel, fuel oil, kerosene and lubricants. Diesel exhaust fluid 32.5% is a solution of high-purity urea in de-mineralized water that is used with the selective catalytic reduction system to reduce emissions of nitrogen oxides from the exhaust of diesel vehicles. Our oil & grease products include motor oils, hydraulic oils, greases and chain oils. We specialize in offering petroleum equipment repairs & maintenance services.