Chevron ADF Oils Approved for Cummins Natural Gas Engines
Chevron announced its Delo 600 ADF 10W-30 and Delo 600 ADF 15W-40 heavy-duty engine oils are approved for use in Cummins natural gas engines.

Two Chevron oils now are approved for use in Cummins mobile natural gas engines.
Photo: Chevron Products Company/HDT Illustration
Chevron announced that its Delo 600 ADF 10W-30 and Delo 600 ADF 15W-40 heavy-duty engine oils are approved for use in Cummins mobile natural gas engines.
Delo 600 ADF 10W-30 and Delo 600 ADF 15W-40 were introduced in 2019, offering the first diesel engine oils formulated with Omnimax, a patented ultra-low ash technology designed to solve the problem of ash build-up from engine oil additive packages in diesel particulate filters (DPFs).
The Cummins approval process requires two years of field testing in Cummins engines sold to the on-highway market, followed by a tear-down of the engines and review by Cummins. After putting Delo 600 ADF through this rigorous process, Chevron has now received approval for the oil's use in Cummins natural gas engines and is registered to CES 20092.
Chevron said the Delo 600 ADF products have been proven to help improve fuel economy retention, reduce forced regenerations, and lessen the downtime required to properly service and remove ash from the units.
“Shortly after launching Delo 600 ADF, we saw that these products naturally align with Cummins CES 20092 specification for mobile natural gas engine oils,” said Shawn Whitacre, Chevron senior staff engineer. “We’re excited that we can now offer fleet operators a single oil for both diesel and natural gas-powered vehicles.”
Whitacre said having a single oil for both diesel and natural gas-powered vehicles should make life easier for fleet operators. With the upcoming launch of Cummins' CNG-powered 15L engine, he is already hearing from long haul operators looking for a one-oil solution for their mixed fleet.
For more information on Chevron Delo 600 ADF, visit Chevron Delo 600 ADF 10W-30 Low Ash Diesel Engine Oil | Chevron Lubricants (US) and Chevron Delo 600 ADF 15W-40 Low Ash Diesel Engine Oil | Chevron Lubricants (US).
More Maintenance

Color Match Smarter: Tools That Restore & Perform
For fleet managers and collision repair professionals keeping heavy-duty trucks on the road, getting the color right the first time isn't just about appearance — it's about efficiency, turnaround time, and bottom-line results. Discover how today's digital color tools are transforming the repair process from guesswork to precision.
Read More →
Wrong Repair Prompts Recall of Freightliner, Western Star 4x2 Trucks
DTNA is recalling more than 2,400 trucks that received an incompatible software fix instead of the hardware repair required to address brake valve corrosion.
Read More →
Truck Drivers Need More Than Another Alert
Fleets have more visibility into truck health, safety events, and driver activity than ever. The next challenge is turning all that information into useful guidance for the person who has to decide what to do next.
Read More →
The Maintenance Checks Trucking Fleets Should Prioritize Before Fall Freight Picks Up
Making it through August isn’t the same as being ready for the next several months of operation. Find out what systems may have suffered from summer heat and need to be checked out before fall.
Read More →
What Three Fleets Are Doing Differently When Buying Truck Parts in 2026
With freight improving but costs still climbing, fleet maintenance executives explain how they're balancing price, quality, and supplier relationships.
Read More →
Paccar Recalls 2027 Trucks Built This Summer for Possible Electrical Problem
The nearly 6,000 Kenworth and Peterbilt trucks in the recall could potentially lose engine power, among other things.
Read More →
Will API PC-12 Oil Change Trucking Fleet Maintenance?
The new API PC-12 heavy-duty engine oil category reflects the changing demands of modern diesel engines. But fleets like Foodliner are looking to getting their own data before making decisions on adopting the new oils and questions such as extending oil drain intervals.
Read More →
Brake Safety Week to Focus on Drums and Rotors
Commercial vehicle inspectors are focusing on truck brakes during CVSA's Brake Safety Week, August 23-29.
Read More →
Possible Battery-Cable Fires Prompt Recall of 15,000+ International MV and HV Trucks
On the recalled vehicles, manufacturing variations can cause the battery interconnect cable to contact the auxiliary stud and hold down the bracket.
Read More →
Rush, MCT Team Up to Grow Refrigeration Service Network
The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.
Read More →

