Chevron introduces new heavy duty diesel oil with reduced additives

William Gleason

November 6, 2019

A desire for higher productivity and extended time between maintenance coupled with the need to meet tighter emission requirements have been the driving forces behind a 16-year process by Chevron Products Company to deliver a new heavy-duty engine oil (HDEO) that will reduce the amount of sulfated ash from the API CK-4 limit of 1 percent to 0.4 percent. 

During a product roll out at its technology center in San Ramon, CA a team of experts introduced the new Delo 600 ADF with Omnimax, a Chevron Patented Technology, that it says will be a game-changer as it delivers maximum system protection to both the engine and the emissions system.

Chevron’s Delo 600 ADF is formulated to 0.4 percent sulfated ash which helps drastically reduce the rate of diesel particulate filter (DPF) clogging, to deliver extended DPF service life and industry redefining fuel economy retention.

“Chevron has taken a customer-forward approach by realizing early on, the extent of the problems caused by the integration of hardware to address the latest emissions regulations and current HDEOs, and today we’re announcing a new solution” said James Booth, NA Commerical Sector Manager at Chevron. “Delo 600 ADF significantly reduces the rate of DPF clogging, extending DPF service life by up to 2.5 times, and bringing a 3 percent fuel economy retention advantage over the life of the equipment, delivering significant savings to customers.”

For the mining industry, the introduction of Tier 4 requirements in 2014 led to the addition of aftermarket diesel particulate filters (DPF) on off highway equipement.

Dan Holdmeyer, industrial sector manager for Chevron said he feels the mining industry will be one of the first that can benefit from the use of Delo 600 ADF.

“I think the off highway sector will see a quicker rate of return,” said Holdmeyer. “They will less frequent build of ash, longer drain intervals and better fuel economy.”

Kamala Krishna, manager of process research in downstream technology and services at Chevron, said the idea for the product came in 2003 from a comment made by a major OEM customer to a Chevron executive.

“The question in 2003 was ‘Is it possible to reduce or change the metal additives that lead to the ash that clogs up the filters,’” said Krishna.

“At that time we weren’t sure if it could be done, but Chevron executives thought this was a real-life problem that a customer has, and needed to be solved.”

The DPF collects up to 90 percent of particulate matter emissions in the form of ash and soot. A regeneration cycle combusts the majority of the soot from the DPF. The ash is incombustible material derived from metallic lubricant additives, meaning over time the DPF clogs up and equipment and fleet owners are forced to take units out of service to restore the DPF function, incurring maintenance costs, and lost productivity. If too much soot and ash builds up, the large amount of heat produced upon regeneration can result in DPF damage, with replacements costing up to $7,000. DPF clogging increases engine back pressure, and regeneration cycles, resulting in a higher fuel consumption.

Delo 600 ADF meets or exceeds API CK-4 and OEM specifications, and has demonstrated excellent oxidation stability in industry, OEM and field tests, providing the opportunity to extend engine oil drain intervals, Chevron said in a press release.

The full Delo 600 ADF line is available on Dec. 2 and will include Delo 600 ADF 15W-40 and Delo 600 ADF 10W-30.

Photo : Chevron says off highway haul trucks could see improved maintenace with the addition of Delo 600 ADF oil.


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