Qualube Masterfleet HD 10W-40

Qualube Masterfleet HD 10W-40 is specifically designed to give the widest coverage of major heavy duty diesel engine specifications as possible. This “one oil suits many” product helps keep your ordering for a reliable, quality lubricant simple. In addition MasterFleet Lubricant helps rationalise the range of engine oil required and potentially eliminates expensive errors. Qualube Masterfleet 10W-40 is manufactured to an approved formulation to give exceptional performance even at extended drain intervals. It is specifically formulated to the latest API CK-4 specification which is fully backward compatible to API CJ-4.

In today's high-speed, increased horsepower, severe-duty diesel engines, together with the advance of after treatment devices the correct engine lubricant has never been more important. Recommend for use in vehicles fitted with advanced exhaust after treatment systems for the reduction of particulate matter (DPFs) and the oxides of nitrogen (EGR and/or SCR) in combination with low sulphur diesel fuel. Qualube Masterfleet 10W-40 has been specifically formulated to meet the unique requirements of these systems, including a wide range of OEM and industry specifications allowing it to be used across mixed fleets.