Got DPF?

Do you know what to look for when the DPF lights come on?

New technologies have changed the way trucks are engineered, and driving/maintaining them require a new set of skills that relate to all the new technology. How do you know what to look for when the DPF lights come on?

The DPF traps the exhaust particulates, and it is not a disposable item - a new one may cost up to $300. They must be periodically cleaned to maintain their fuel efficiency. The DPF warning lights might be solid or flashing when they come on, indicating two different concern levels.

The DPF status light is on steadily.

The DPF status light is flashing.

Download DPF Guide

Regulation Inquiry

This Page's Information was Last Updated on August 2, 2015
*This webpage represents the cumulative research of Royal Truck & Equipment of the regulations for each state and is provided as a courtesy to our customers. This information will change from time to time. Royal will provide updates to this information on an annual basis. It is recommended that you or your company do not solely rely on this webpage's information to determine if you meet legal requirements. It is suggested that when you download the full reports provided that you verify Royal's data by checking the reference links and contact information in the report. Royal does not certify the accurate information in the reports beyond our best efforts taken to compile the data and inform our industry. Please be safe and verify independently.

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