Convoy Ultra HD is a heavy duty diesel engine oil formulated to API CK-4 performance level, offering enhanced protection for modern low-emission diesel engines including those fitted with exhaust gas recirculation (EGR), diesel particulate filters and selective catalytic reduction systems.
Convoy Ultra HD provides excellent shear stability, oxidation resistance and soot handling, making it suitable for trucks, buses and heavy machinery operating in demanding on and off-highway conditions.
