Get the Transmission Fluid you need when servicing the transmission in your 1989-1993 Dodge 5.9L Diesel. Using a high-quality fluid helps to prevent the formation of corrosion, rust, and foam while offering smooth gear changes. Available in synthetic convention and varieties, these fluids reduce damaging heat and wear while offering longer service life. XDP carries high quality fluids from Sun Coast Converters, Royal Purple, Hot Shot's Secret, and Lucas Oil.