Issue link: http://read.dmtmag.com/i/42794
TRUCKING OPPORTUNITIES (Continued from Page 41) He notes that intervals vary with oil type. "Our 2007 interval when running CI-4 oil is 200,000 miles, 22 months, or 4,500 hours, while with CJ-4 it is 250,000 miles, 30 months, 6,000 hours. The difference is that a lot of the ash was taken out of CJ-4. Volvo Powertrain Marketing Manager Ed Saxman says his company recommends cleaning the DPF at 250,000 miles or 4,500 hours, whichever comes first. "The DPF is large enough that, with proper maintenance, there is not a significant performance difference between a new filter and a dirty filter," he says, adding that you're only likely to notice a difference "if the filter becomes full of ash." The recommended cleaning interval for Detroit Diesel engines is between 300,000 and 400,000 miles for most applications, notes Williamson. "The other way to determine this is to remove the filter and use the Detroit Diesel service tool to check the capacity." Where and how to clean Owners "should thoroughly familiarize themselves with what the manufacturer of the DPF recommends among the many different cleaning methods," Giguere says. "Cleaning methods include compressed air or heat or a combination of both. But, some filters may be sensitive to This FSX machine is used by Navistar and Paccar Parts in cleaning DPFs. high temperature or pressure." One sure approach is taking advantage of a technology the manufacturer has developed. Giguere notes Detroit Diesel's method of treating the interior surfaces with a liquid is "substantially different from the methods used by other manufacturers. By applying a liquid, Detroit feels they can clean the filter to a higher level." More than 130,000 truck accessories at your fi ngertips! Now the industry's biggest and best selection of chrome, electronics, lights and other truck accessories is just a click away. Overdrivedigital.com has partnered with Iowa80.com, The Place for Chrome, to make tricking your rig out in style fast and easy. Simply: If you can't fi nd something you need here. You just aren't trying! 74 OVERDRIVE OCTOBER 2011 www.overdrivedigital.com DPF cleaning