Archive for July, 2019

Introduction to Automatic “Auto Desorb“ Feature on MX Powered Peterbilt Chassis

Monday, July 15th, 2019

On May 7, 2018, Engine software version RC 7 was released to add a new functionality to the MX engine family.

Automatic regens or “Auto Desorb,” as it is referred to by Paccar, is your truck’s ability to do small maintenance regenerations without the driver’s interaction. Think of them as automatic mini regens to help prevent the operator from having to perform a mandatory stationary regen. As we all know, these types of regenerations are required to be initiated by the driver and render the vehicle out-of-service, sometimes for up to an hour. Particularly, if your vehicle idles for more than three hours continuously, operates in cold climates, or is a 2017 year model. It is important to make sure to utilize this new feature to prevent shortened aftertreatment life, nuisance manual regens, and costly downtime.


Adjust Payment Terms ×

We want to help you find the perfect truck that fits your budget. Please adjust the options below so we can estimate the most accurate monthly payments.

Estimated Credit Score or Interest Rate

Desired Loan Term (months)

How much will you put down?

All tax, title and vehicle registration fees are additional. See dealer for complete details.