MACK EO-M PLUS

MACK EO‑M PLUS approval is a technical specification developed by the American manufacturer of heavy trucks Mack Trucks for their medium‑ and high‑power diesel engines. It calls for the use of engine oils that meet API CJ‑4/CK‑4, ACEA E7 requirements and have a viscosity range of 10‑20 W, providing stable protection under high loads, long distances and a wide temperature range. The specification covers both traditional non‑aftertreated diesels and modern units with exhaust after‑treatment systems (DPF, SCR), and the oils approved under EO‑M PLUS have a low SAPS content, allowing safe operation with catalysts and soot filters. It is recommended for Mack M‑series, E‑series and C‑series engines used in long‑haul and city trucks, ensuring warranty retention and optimal wear resistance in demanding service conditions.