
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.
Purchase at your nearest Caltex station
Our Engine Oils
Delo® Gold Ultra SAE 15W-40Mineral
A high performance, multigrade, heavy-duty diesel engine oil specifically designed to lubricate a wide range of engines, including those fitted with emission control technologies.
Delo® 400 SLK SAE 15W-40
Delo 400 SLK SAE 15W-40 with ISOSYN Advanced Technology is a premium quality “low-SAPS” heavy-duty diesel engine oil specifically designed using the latest generation additive technology to provide outstanding protection for on and off-high...