Unlock your fleet’s full potential

Why stop at a well-functioning fleet when you can drive it beyond expectations. Caltex Diesel with Techron® D and Delo® Engine Oils together give you triple the advantage to do just that.

Techron D has proven cleaning power to optimise engine performance. Delo has ISOSYN® Technology that gives vital engine protection. Together, the two products provide Reliability, Durability, and Efficiency. That’s triple the advantage to transform your business.

So, be it trucks, buses, or light commercial vehicles, your fleet will do much more than just run. It will drive profits. At Caltex, that’s all we aim for.

Caltex Difference image

Both Techron D and Delo Clean and protect critical engine parts to give you Triple the advantage


Cleanliness and wear protection across various engine components minimising equipment failure and breakdown to achieve long-haul reliability. 


End-to-end protection against wear, corrosion, oxidation and deposit, increasing oil, filter and engine life to reduce downtime.


Cleans engine, maximizing performance & power, maintaining efficiency closer to that of a new engine.




The Tested and Proven Advantage

Our specialists have shown that Techron D & Delo keep your engine clean and protect it for the long run, giving reliability, durability and performance efficiency. See how the triple advantage of these high-quality products can transform the businesses of our customers.


Caltex Diesel with Techron D

Gives your vehicles 20% cleaner injectors vs our previous formulation. Injectors at the end of this test1 remain perfectly clean, ensuring reliable performance.


Delo 400 MGX SAE 15W-40

Industry standard tests show enhanced Top Ring Wear protection by 38%, minimising equipment failure and breakdown leading to lower maintenance cost and prolonged engine life.


Caltex Diesel with Techron D

Gives your vehicles complete protection against deposits and corrosion to help improve fuel system durability and reduce downtime2.

Delo 400 MGX SAE 15W-40

Industry standard tests show improved soot discrepancy and oxidation protection by 73%, reducing filter clogging and increasing oil, filter and engine life.


Caltex Diesel with Techron D

Fleet trials in a variety of applications have shown that cleaning of dirty fuel injectors using Caltex Diesel with Techron D can help improve fuel efficiency by up to 3%3.

Delo 400 MGX SAE 15W-40

Improves cleanliness by reducing piston top groove deposits by 43%*, keeping your engine as good as new, delivering the same efficient performance as your engine was designed for originally.

1. The CEC-F23-01 XUD-9 test demonstrates how Techron D performs in indirect injection engines. Indirect injection technology is dominant in older diesel engines. The test is run on an engine in a lab under controlled conditions using exactly the same fuel to measure the results with and without Techron D and comparing results to determine how much difference the addition of Techron D can make to keeping injectors clean. The XUD-9 test puts an engine under high stress and create conditions that will block the injectors, so it can test how well the fuel will keep the injectors clean. At the end of the test period the injectors are taken out and the flow is measured.

2. ASTM D655A is a standard test to determine how effective an additive is at protecting an engine from rust.

3. Fuel Economy was tested using a heavy duty chassis dynamometer using the Millbrook London Transport Bus drive cycle. Fuel consumption was measured at the start of the test and after 3 months of normal use. Improvement in fuel economy can be attributed to the cleaning of fuel injector deposits after switching to diesel with Techron D.

* Against industry standard tests requirements.