AMSOIL has introduced a new Premium API CJ-4 Synthetic 15W-40 diesel oil. The new oil is an upgrade to the company's most popular 15W-40 viscosity, now re-formulated for the 2007 CJ-4 specifications ...

According to Amsoil, its new synthetic diesel oil offers a low volatility rate for reduced oil consumption and emissions during operation. Amsoil’s 15W-40 oil is for both on- and off-road diesel ...

Amsoil has a complete line of diesel engine synthetic oils. The line features the Signature Series Max-Duty Synthetic in 5W-40, 5W-30, 10W-30, 15W-40, and 0W-40 grades. The line also includes ...

Oil is a vital component for engines of all types. Not only is it responsible for providing lubrication to numerous moving interior parts, but it also helps prevent friction and the development of ...