National Perfomax Excel are monograde available as SAE 10W, 30, 40 and 50 grades and are a high performance premium quality diesel engine oils designed for mixed fleet applications. They are formulated using high quality paraffinic base oils with selected additives for all turbocharged or naturally aspirated diesel and gasoline engines. This oil is suitable for high-speed, four-stroke cycle operating under severe service conditions.
Mixed fleets of both diesel and gasoline engines where monograde is preferred.
Off-highway vehicles and plant machinery.
Commercial road transport.
Manual transmission and mobile hydraulic systems.
Longer engine life due to protection against high temperature piston deposits.
Good protection against corrosion and rusting.
Enhanced wear protection and engine cleanliness under severe operating conditions.
Longer oil drain intervals due to higher level of alkaline reserve.