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Achieves 1,000,000+ kilometers in a Freightliner truck using Delo family of products.   

Achieves 16,000+ hours of engine durability in New Holland Tractor with Caltex Delo 400. 

Achieves 630,000 kilometers+ in severe service in a MAN Bus using Caltex Delo family of products.   


As your lubrication partner, we strive to keep your comprehensive fleet of equipment running reliably, help minimie operating costs and maximise performance. This includes diesel engines, transmissions, final drives, hydraulic systems, pins and bushings, and generators.  Let's go further in the Agriculture business with Delo.  

Caltex lubricants stand for reliability. Properly lubricating the inside of a heavy-duty diesel engine requires more than just creating a protective film. Caltex’s advanced formula Delo® 400 LE SAE 15W-40 provides excellent oxidation resistance, deposit and oil consumption control and wear performance to protect against loss of engine performance and durability.

The family of Delo Extended Life Coolant products helps, reduce the number of coolants required to protect diesel engines, eliminate the need for supplemental coolant additives (SCAs) and repetitive inhibitor testing, minimize operating costs by eliminating costly coolant maintenance, and extend diesel engine life and coolant system performance.


Delo® Gold Ultra is a high performance, multigrade, heavy-duty diesel engine oil specifically designed to lubricate a wide range of engines requiring API CI-4 or ACEA E7 performance lubricants. Delo Gold Ultra is formulated with ISOSYN® technology.

Delo® 400 LE 15W-40 is a premium performance, “low-SAPS” heavy-duty diesel engine oil specifically designed to lubricate a wide range of high speed diesel engines requiring API CJ-4, CI-4 PLUS / SM, or ACEA E9 performance lubricants operating under the most severe service conditions.

Delo® XLC is a non-nitrited extended life Antifreeze/Coolant formulation for heavy duty and light duty diesel vehicles and equipment. Delo XLC is formulated with an aliphatic corrosion inhibitor system available as a concentrate and a premix 50/50.