October 15

Manual Regeneration

There’s no such thing as profitable downtime, especially when you don’t expect it. You must conduct a manual regeneration when soot builds up inside the DPF and before the truck is no longer operable. When this happens, you need to pull over and conduct a manual regeneration. This process can take anywhere from 30-60 minutes. Below is information on the regeneration process that will be helpful to you.

What Is A Manual Regeneration & Why Must You Regenerate?

A manual regeneration is a self-cleaning process that must occur when exhaust soot overwhelms your DPF. It allows for better combustion, faster and more efficient fuel burn, and a dramatic reduction in soot. If you don’t consistently perform a manual regeneration, your truck will become inoperable and cause a domino effect of problems.

How Often Should You Regenerate Your Truck?

Conduct a regeneration bi-weekly or once a month.

How To Regenerate Your Truck

  1. Pull off the road and into a parking lot where there is at least 5 feet of clearance from the exhaust.
  1. Set the parking brake with the engine running and transmission in neutral. 
  1. Push the regeneration button.
  1. Your truck will run at a high idle for 30-60 minutes. Make sure you wait for the regeneration light on the dash to go out. 
  1. Repeat cycle if necessary.

If you’re unsure about performing a manual regeneration, you can hire a diesel technician to do it for you.

If you have questions or concerns, refer to your truck’s owner’s manual.


OTR Leasing is not responsible for any engine malfunctions or damage if the regeneration isn’t successful. If you have questions or concerns, refer to your truck’s owners manual. We recommend you bring your truck to a professional diesel mechanic to have them show you how to perform a regeneration on your specific truck.