AMSOIL introduced the world's first Synthetic Motor oil for Diesel Engines in 1975 and dramatically redefined the performance and protection available to diesel owners.
Today, AMSOIL is the recognized leader in synthetic lubricant technology and offers a variety of exclusive synthetic diesel oil formulations, each tailored to meet the unique demands of modern, hard-working diesel engines.
AMSOIL Synthetic Diesel Oils neutralize acids, resist heat and control soot longer than conventional oils. Their premium synthetic chemistries allow motorists to safely extend drain intervals up to three times longer than OEM recommendations, saving money and time. Extended-drain savings can mount further when by-pass filtration and oil analysis are used.