United Eco-Max are Advanced Heavy-Duty CK-4 & FA-4 Diesel Engine Oils that are specially designed to meet new Proposed Category 11 (PC-11) specifications for heavy-duty-vehicle. A new category by split into two seperate and distinct subcategories: one that preserves historical heavy-duty oil criteria and one that provides additional fuel eficiency and economy benefits for modern diesel technology while maintaining durability. United Eco-Max improve engine performance that are being addressed include oxidation stability, shear stability and aeration.United Eco-Max not only meets API credentials, but also is also designed to meet the latest original equipent manufacturers (OEMs) performance specifications in appropriate grades and base stocks - including Caterpillar, Cummins, Detroit Diesel, Mack, Renault, Volvo, Mercedes-Benz, MAN, and Ford. United Eco-Max also meets the self-certifying requirements of ACEA E9.- Better protect engines, minimizes oil consumption- Satisfying most diesel engine OEM oil demands- Hydro-treated base, inherent thermal-stability and anti-oxidation property- Particular suitable for the modern diesel engine- Provide better fuel economy, and reduce GHG emissions