76 Lubricants Triton ECT Full Synthetic Motor Oil is a premium quality, full-synthetic engine oil developed for use in four-stroke cycle diesel engines operating under extreme temperature conditions. It meets API CJ-4 performance requirements for use in modern low-emission engines designed to meet 2007 and later EPA on-highway exhaust emissions standards, and is backward serviceable for use in older diesel engines. It is specially formulated to protect exhaust aftertreatment devices such as diesel particulate filters (DPF), diesel oxidation catalysts (DOC) and selective catalytic redution (SCR) systems. The full-synthetic formulation and SAE 5W-40 viscosity grade provide excellent low-temperature properties for better performance in harsh winter climates.