Delo® Heavy-Duty Diesel Engine Oil | For Truck & Buses

DELO® Truck and BusesHeavy-Duty DIESEL ENGINE OILS

Delo means efficiency. Fuel economy without sacrificing engine protection. Save money, and lower emissions. Switch to a Delo fuel economy product to see it for yourself.

Maximise engine reliabilty and fuel economy

When it comes to heavy-duty engines, proper lubrication means much more than just a protective film. The right engine oil also helps to disperse soot and control sludge, so as to improve fuel economy and engine durability – and most importantly, minimise operating cost.

Explore our full range of premium line of engine oils.

Purchase at your nearest Caltex station

Our Engine Oils

Delo® Gold Ultra SAE 15W-40Mineral

Delo® Gold Ultra SAE 15W-40 is a high performance, multigrade, heavy-duty diesel engine oil specifically designed to lubricate a wide range of engines.


Delo® 400 SLK SAE 15W-40

Delo® 400 SLK SAE 15W-40 with ISOSYN Advanced Technology is a premium quality heavy-duty diesel engine oil designed outstanding engine protection.


Delo® 400 RDS SAE 10W-40

Delo® 400 RDS is a High performance synthetic- blend “low-SAPS” diesel engine oil designed to meet current ACEA requirements and more challenging OEM specifications for Euro V and VI engines, especially where Diesel Particulate Filters (DPF...


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