High-speed, four-stroke engines
Delo® Gold Ultra SAE 15W-40
High-speed, four-stroke engines
Delo® Gold Ultra SAE 15W-40

Delo® Gold Ultra SAE 15W-40 is a high-quality, heavy-duty diesel crankcase lubricant. Manufactured from high-quality base oils and compounded with additives, Delo Gold Ultra SAE 15W-40 provides good lubrication for turbo-charged, high-speed diesel engines under severe operating conditions. It contains detergent/dispersant, antioxidation and anti-wear additives, and meets the API service classification CI-4.

Typical Characteristics
Density at 15C, kg/l 
Kinematic Viscosity at 40°C, mm²/s
Kinematic Viscosity at 100°C, mm²/s
Viscosity Index
Pour point, °C
Flash point COC, °C
Total Base Number, mg KOH/g
Recommended Uses

Delo Gold Ultra SAE 15W-40 is recommended for use in heavy-duty (turbo-charged), high-speed diesel engines operating under very severe conditions where an API CI-4 type oil is required. This grade is especially recommended for emergency equipment onboard seagoing vessels such as lifeboat engines and motor-driven fire pumps and emergency compressors.

Delo® Gold Ultra SAE 15W-40 Is Approved For:

Daimler MB-Approval 228.3

Detroit Diesel 93K215

Deutz DQC III-10

Delo® Gold Ultra SAE 15W-40 Is Recommended For Use In:


Caterpillar ECF-1-a


MAN Truck & Bus M 3275-1

MTU Category 2

Performance Benefits

1. Oxidation Stability & Deposit Control

Minimal crownland deposits and good oxidation stability may help minimize oil consumption.

2. Corrosion Protection

Good control of deposits and wear may optimize the engine overhaul intervals.

3. Anti-Wear Properties

High detergency can provide good deposit and sludge control in the piston ring belt area.

4. Minimizing Operating Costs

Can prevent unscheduled downtime by providing efficient dispersion of soot particles. The protection against soot related wear and deposit can also prevent excessive viscosity increase and filter plugging.