You need an ally, with a proven track record of success, that is committed to the success of your business. You need a Chevron 1st Source Lubrication Marketer! Eljay Oil is your Chevron 1st Source Marketerand your success is our priority.


Properly lubricating the inside of a heavy-duty engine requires more than just creating a protective film. Quality heavy-duty engine oils must also disperse soot and control sludge to extend your engine’s life. Eljay Oil is proud to offer the finest in Chevron lubricant and oil products.

Delo® heavy duty motor oils [Diesel Engine Oils] and coolants are designed for on-road and off-road uses, ranging from truck and bus transportation to construction, mining, agriculture and power generation. Delo heavy duty products use Chevron’s proprietary ISOSYN® Technology, which combines premium base oils with additives to deliver performance that rivals synthetic lubricants. Our most popular engine oils are listed below.


Delo 600 ADF SAE 10W-30
Is an ultra low ash heavy duty engine oil recommended for Tier IV Final & 2017 greenhouse gas-compliant, naturally aspirated and turbocharged four-stroke engines, that API CK-4 oils and 10W-30 viscosity grade and mobile NG engines are recommended. This product meets the Detroit Fluid Specification DFS 93K223
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Delo 400 XLE SB SAE 15W-40
Delo 400 XLE SB SAE 15W-40 is a synthetic blend, heavy-duty engine oil designed for extended drains and mixed fleets.
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Delo 400 SP SAE 0W-30
Delo 400 SP SAE 0W-30 (Synthetic) is a mixed fleet engine oil recommended for naturally aspirated and turbocharged four-stroke diesel engines and fourstroke gasoline engines in which an SAE 0W-30 viscosity grade is recommended for cold weather startup and operation.
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Delo 400 XSP SAE 5W-30
An API CK-4 heavy duty engine oil specifically formulated for on highway applications, including 2017 greenhouse gas-compliant (GHG 17) diesel engines. Fully compatible with previous oil categories.
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Delo 400 XSP SAE 5W-40
Delo 400 XSP SAE 5W-40 with ISOSYN® Advanced Technology™ is an API CK-4 heavy duty engine oil specifically formulated for on- and off-highway applications, including 2017 greenhouse gas (GHG 17) compliant diesel engines.Fully compatible with previous engines and oil categories.
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Delo 400 SAE 10W, 20, 30, 40, 50
Delo 400 monograde oils are mixed-fleet motor oils recommended for older four-stroke gasoline and diesel engines.
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Delo 100 Motor Oils SAE 40
Delo 100 Motor Oil is recommended for use in two and four-stroke diesel engines in farm machinery,construction equipment, marine, and other off-highway applications where the SAE 40 grade is specified by the OEM.
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Havoline® Motor Oils

Havoline® motor oils are the only motor oils with Deposit Shield® that protect your engine against harmful deposits.

The advanced additives in Havoline bond to each other and your engine’s vital parts, shielding them from metal to metal contact, corrosive agents and the extreme temperatures of combustion. This layer of protection is only two microns thick, but it effectively shields your engine from wear that could shorten its lifespan. This is the power of the Deposit Shield® formulation at work.

To appreciate how Havoline® protects your engine’s individual parts, you have to take a closer look. Much closer. The Deposit Shield® in Havoline motor oil works at a molecular level to form a protective coating on engine parts, effectively shielding them from harmful deposits and unnecessary wear. The result: cleaner, smoother running parts that can operate more efficiently and last longer.

The Havoline® Line of products:

  • Motor Oils
  • Transmission Fluids
  • Coolants and Antifreeze
  • Powering Steering Fluid
  • Gear Oils
  • Oils & air filters

Oil Analysis

The Value of Reliability-based Lubrication

Chevron Lubricants’ business model is a blend of knowledgeable people, targeted products and customized services that can help lower operational costs while maximizing machinery uptime. It’s focused on what you need most: reliability. Predictive measures and analysis play an important role. Our LubeWatch® oil analysis program can identify contamination or wear before it results in costly downtime.


Eljay has partnered with OilWorx to help you protect the environment. By responsibly collecting, accepting, and recycling used petroleum and related materials we’re protecting the environment.


With our technical expertise, Chevron products, and dedicated service, we can cut your operating costs, minimize downtime, extend the life of your equipment, and keep your entire operation running better than ever. You can count on us! Contact the Chevron LubeTek technical team for further assistance.


Chevron 1st Source is a commitment and a dedication to the highest levels of service and product delivery.

You need more than a supplier. You need an ally that is committed to the success of your business. You need a partner with a proven track record of success. That’s why you should work with a Chevron 1st Source Lubrication Marketer. When you work with a Chevron 1st Source Marketer, you get a partner that has attained the highest ranks of performance, customer satisfaction and profitable growth. Eljay Oil is your Chevron 1st Source Marketer and your success is our top priority.

We Are Our Customers’ 1st Source of:

  • Continuous Supply & Service
  • Proven Satisfaction
  • Lubricant Knowledge & Business Expertise
  • Value & Profitable Growth
  • Quality Chevron Products


Click for Safety Data Sheets and Product Data Sheets.


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