API CK-4 and API FA-4 New Categories

by on November 8, 2016 3 Comments


The introduction of API CJ-4 back in 2006 was the last time a major commercial API oil category change took place and the end result led to exactly one product for heavy duty diesel engines – the 15W-40 motor oil. While customers could choose their preferred brand, there were really no choices beyond that.

How things have changed. Now that the PC-11 initiative has produced the API categories CK-4 and FA-4, independent truckers and fleet operators have more choices than ever in terms of viscosity grades, performance criteria and price points to meet their objectives. Chevron’s extensive new Delo 400 line of CK-4 and FA-4 oils (available December 1) is a prime example of the choices available to customers. Whether seeking greater fuel efficiency, longer oil drain intervals or improved startup performance, there is a new oil, which also offers long-term engine protection. Additionally, for those with a mixed fleet of older and newer engines, there is now an opportunity to upgrade to an oil that can satisfy the needs of both, while still delivering better wear protection.


Lower Viscosity is the Future

With the new oil categories, there is a trend toward lower viscosity as the wave of the future. No longer does lighter viscosity signify less protection. Today’s lighter weights can deliver the equivalent or even better wear protection than a CJ-4 15W-40 oil, along with significantly improved oil drain performance.

That said, not all oils of a given viscosity are alike. The major oil producers may have access to similar base oils and additives, but the formulating expertise that goes into creating the oils is what separates one oil from next. The situation is similar to the cooking shows on TV: two competing chefs have access to the same ingredients, but one of them is able to blend their base ingredients in such a way that their dish is more appealing than their opponent.

With thinner film viscosities, it takes a great deal of formulating expertise to achieve the same levels of protection as a 15W-40 grade product. Thinner film means less room for formulation errors. Along with the new Delo 400 products, Chevron recently unveiled the next generation of our ISOSYN® technology – called ISOSYN® Advanced Technology – which showcases Chevron’s formulating expertise combined with high-performance additives and premium base oils. In testing, ISOSYN Advanced Technology has demonstrated that it offers greater engine durability than CJ-4 oils with better wear performance, oxidation stability, piston deposit control and longer drain intervals.

In general, more choices is a good thing, but too many choices can be confusing. This is why Chevron has introduced a free advisory service to help customers make the best decision to meet their unique needs as they transition to CK-4 and FA-4 products. Through this service, Chevron’s advisors will conduct a free analysis of the equipment and business requirements to help determine the optimal oil for each customer’s needs. Please contact a Chevron Lubricants representative to learn more about this new program.

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About the Author ()

Leonard has worked over 25+ years in the Lubricants Business in sales, product line, training, and solutions focus with over 14+ years with Chevron Lubricants. He is Chevron’s Global Commercial Brand Manager overseeing the Delo Brand and product line strategy for Heavy Engine Oils, Coolants, Greases, and Automotive Gear Oils within Chevron’s family of lubricants brands. He has developed and led Chevron lubricants HDMO and Driveline strategy into low viscosity leadership with the launch of several key fuel efficient Chevron Delo branded products. He also is the Global Project Manager responsible for Chevron’s Delo PC-11 product launch into the North American, European, Africa & Middle East, and Asia Pacific Markets for the future. Leonard is a member of STLE and SMRP and holds several certifications including Certified Maintenance Reliability Professional (CMRP); Certified Lubrication Specialist (CLS); Oil Monitoring Analyst (OMA); Machinery Lubricant Technician (MLT); and Machinery Lubricant Analyst (MLA). He has also written over 35+ articles for various publications in relation to reliability, coolants, greases and heavy duty engine oils. Recent articles including “Breaking the Myths and Superstitions about Total Base Number”, “Coming Changes for Customers with PC-11” and a recent featured article in STLE Tribology & Lubrication Technology Magazine – “The Challenges of PC-11 – Q&A with Chevron Lubricants Leonard Badal”

Comments (3)

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  1. thoroughbred381@gmail.com' CURT Redding says:

    I have an 07 Cat C7 in a Freightliner box truck . It is turned up and has 325,000 miles. I have read 10w30 is recommended. But Cat mechanic told me to use 15w 40. I run from North to South in extreme temps. I read Cat wants API of CJ 4. Or higher. And have read synthetic is best . Wichita oil would you recommend

    • LJBA@chevron.com' Leonard Badal says:

      Curt, thanks for the question and this is a good one based on your operation and routes. We would recommend any of the 3 products based on availability to you and on the routes you run:

      o Priority – Delo 400 XLE SAE 10W-30 (Synblend) would be best option and should be available at a majority of retailers and truck stops for your use. It’s a Synthetic blend offering and a high % of large fleets like Swift, Ryder, Werner, XPO (Conway) are some of our customers who have successful used this Product for over 5 years now as their fleet oil.

      o Secondary – Delo 400 SDE SAE 15W-40 is a great option also and is a good SAE 15W-40 option if you feel more comfortable with a heavier viscosity grade. This product is starting to show up at retailer channels and some trucks stops but won’t be fully available until most likely May or June 2017 as older API CJ-4 Delo 400 LE SAE 15W-40 is sold out of the retailer channel.

      o Third – Delo 400 LE SAE 15W-40 (API CJ-4) this is still available but starting to trend out of the retail channel and trucks stops as the new Delo 400 SDE SAE 15W-40 transitions in to replace it. This can be used as a third option if you can’t find the Priority or secondary options available above as you travel through the country.

      Let us know if you have any further questions or comments.

  2. thoroughbred381@gmail.com' CURT Redding says:

    I have recently read that Ford Motor company has rejected CK4 oil in 7.3 deisel engines due to their shear test . Until any more data shows different


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