AMSOIL OE 15W-40 Synthetic Diesel Oil (OED) is recommended in place of the recently discontinued 15W-40 Synthetic Blend Gasoline & Diesel Oil (PCO). AMSOIL OE Synthetic Diesel Oil is a full-synthetic oil that offers additional benefits at a lower price compared to AMSOIL Synthetic Blend Diesel Oil. It is formulated to meet the most current API CJ-4 specification and is suitable for use in both modern and older diesel engines. Synthetic Blend Gasoline & Diesel Oil is available while supplies last.
