Oil & 2010 Tech

John Baxter | November 01, 2011

“There is work going on at Cummins all the time relating to the possibility of extending drains,” he says. “But measuring what goes into the oil and its degradation rate is a major project.” Ellison also says Cummins and other engine makers are “pretty conservative because you need to have an extremely high confidence level before you can make such a change.”

Manufacturers are hesitant to adopt extended intervals for good reasons. One is that “the truck doesn’t always show up exactly at the right time” for a scheduled change, Ellison says. Delaying the change 5,000 miles can lead to problems. Also, even a subtle change in the way a truck operates can make an extended interval inappropriate.

“Any interval that would take an operator past the OEM recommendations need to be very closely watched and monitored through used oil analysis,” Badal says. “With extended intervals, it is also helpful to ensure that premium products are used throughout the truck.”

With engines having produced a significant reduction in most stresses with 2010 technology, some helpful drain interval extensions may yet be introduced as more experience is gained.