Krüger TURBOMAX 10W-40 API CK-4/E11

Krüger TURBOMAX 10W-40 API CK-4/E11 is a polyalphaolefin-based synthetic engine oil for modern heavy-duty commercial diesel engines. CK-4 is the current API category for diesels running a full exhaust aftertreatment stack. The oil is formulated to work with a particulate filter, exhaust gas recirculation and selective catalytic reduction at the same time: sulphated ash and phosphorus stay at levels that neither clog the DPF nor poison the SCR catalyst. The PAO base sustains long periods under load without losing viscosity. For a truck or bus that means system pressure holds on a long climb and on line-haul runs, where the oil sits at operating temperature for hours with no chance to cool. Dispersant additives keep soot suspended in the oil and stop it from clustering into abrasive agglomerates that wear the cylinder and piston group.