Driven by the specific demands of the API FA-4 category and the quest for greater fuel efficiency and lower emissions, DURON Advanced is our durable low viscosity, high performing synthetic and synthetic blend, heavy-duty diesel engine oils designed for the latest and future fuel-efficient engines, to keep you going longer between oil drains and reduce your fuel costs.

API FA-4 category oils:

• Have limited interchangability with older diesel engine oils, and
• Have limited backwards compatibility with older engines

Consult your OEM to determine suitability with your engine.

• Advanced Economy: Offers improvement in fuel economy versus the API CK-4 equivalent, enabling you to reduce fuel costs and save money.
• Advanced Durability: Outstanding resistance to oxidation, aeration and excellent shear stability.
• Advanced Protection: Provides long term protection against engine wear and the build-up of engine deposits and harmful sludge which helps extend drain intervals.^[1]
• Advanced Shear Stability: Robust shear stability helps keep the oil to stay in grade over long periods of heavy-duty use, giving you the film strength for better engine protection.