Lubricants for Commercial Fleets, Bus, Truck


From stop-and-go city driving to long-haul trucking operations, find everything you need to reduce vehicle downtime and operating costs.

Reduce downtime with superior long-haul reliability

When your fleet is in motion, your business is driving profits. Our goal is to give you the confidence to safety push engines further to help minimise operation costs and maximise performance. As your lubricantion partner, we strive to keep your fleet highly competitive and your costs well in line. 

Explore our range of Delo® heavy-duty engine oils, gear oils, transmission fluids and coolants, which are specifically formulated to meet the intense demands your vehicle face.

Customer testimonials

Our oil drain interval has extended from 60,000 km to 80,000 km.

Kawita Paritwadittha, Maintenance Department Manager
Nakhonchaiair Co., Ltd.

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Achived 20,000 KM Oil Drain Interval and Results is very good

Gerrit Wilem Van Helden, Logistics Director
PT. Siba Surya

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Product Categories

Heavy-Duty Engine Oils

Delo® heavy-duty engine oils provide the protection customers need to increase equipment productivity and reduce costly downtime. Delo helps you go further.

Delo® 400 MGX SAE 15W-40

A premium performance, “low-SAPS” API CJ-4 heavy duty diesel engine oil specifically formulated for on-highway and off-highway applications using either High Sulfur or Low Sulfur Diesel and can also provide protection for newer compliant lo...

Delo® 400 NG SAE 15W-40

A premium CNG/LNG/LPG oil formulated to deliver outstanding protection and long drain performance in a wide variety of medium and heavy duty CNG/LNG/LPG-fuelled applications.

Delo® Gold Ultra

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® Silver Multigrade

A multigrade heavy-duty diesel engine oil designed to lubricate engines requiring API CF-4, CF/SG performance lubricants.

Delo® Silver

A monograde heavy-duty diesel engine oil designed to lubricate engines requiring API CF/SF performance lubricants.

Relevant brochures

All about Delo 400 MGX

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Delo MGX 400 FAQs

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Infographic on Delo 400 MGX

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Delo Gold Ultra

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Our coolants feature patented organic corrosion inhibitors that are designed to improve heat transfer, reduce operating costs, eliminate the need for supplemental coolant additives (SCAs) and extend the life of both engine and cooling system.

Delo® XLC Premixed

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.

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Learn more about our products to suit your needs.

Extended Life Coolants product list

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Using the right grease helps protect your heavy machinery from extreme temperatures, pressures, and impact, extending reliability and service life and saving you money in the long run.

Delo® Starplex EP 2

A premium, multipurpose EP automotive wheel bearing and chassis grease containing an ISO 220 mineral base oil, a lithium complex thickener, EP additives, rust and oxidation inhibitors and tackiness additives.

Gear Oils

Gears running at extreme temperatures and high loads require high-quality lubricants to ensure efficient wear protection for bearings and gears.

Delo® Gear EP-5

A multipurpose lubricant made from paraffinic base stocks and contains a carefully balanced additive package to provide gear protection and long lubricant life.

Delo® Gear EP-4

A multi-purpose lubricant made from paraffinic base stocks and contains a carefully balanced additive package to provide gear protection and long lubricant life.

Relevant brochures

Automotive gear oils range

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Transmission Fluids

Specially formulated to deliver year-round, trouble-free performance under the most severe loads, our transmission fluids deliver exceptional anti-wear protection to promote long transmission life.

Texamatic® 1888

A high performance, multipurpose, shear stable, anti-wear automatic transmission fluid (ATF) with Voith Turbo approval.

Product recommendation guide

Our premium lubricants have been designed to excel in different industrial, on and off-highway engines and commercial vehicles, delivering reliable engine protection and outstanding performance.

See product recommendations for:

Our Programs

  • Reliability-Based Lubrication Program

    Help your equipment and operations run more reliably, efficiently and profitably with our RBL Program. We’ll show you how to reduce costs with the right products, services and knowledge.

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  • LubeWatch® Oil Analysis: Advanced lab analysis to improve your operation

    As you optimise your lubrication program for peak protection and performance, attentive monitoring helps you continue to achieve the benefits. LubeWatch oil analysis helps you detect potential problems and fine-tune your maintenance practices to extend drain intervals, minimize failures and reduce costs.

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Interested in optimising your business with Caltex?