DPF Cleaning

Why Clean Your DPF?

Diesel Particulate Filters (DPFs) are emissions devices installed on all over the road diesel engines manufactured beginning in 2007. DPFs are designed to burn soot. Unburnable ash gradually collects in the filter causing excessive back pressure and regenerations. DPFs are expensive parts costing $2,300 to $8,000. Kenworth of Richfield and Kenworth of Ashland can service your DPF at a fraction of the cost of a new filter.

Failure to service your DPF can cause the following problems:

• DPF Failure (Requiring replacement)
• Down Time (Loss of revenue)
• Lower fuel economy (Higher expenses)
• The DPF must be removed from the truck in order to be serviced.

When to Clean?

Most engine manufacturers recommend removing the DPF for cleaning at 250,000 miles. Research and testing have found that ash begins hardening in the filter cells as early as 150,000 miles. Once ash hardens it can cause permanent damage and cracking.
See the process video here.

We recommend cleaning every 200,000 miles!