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Your Fleet Has a Aftertreatment Schedule

Your Fleet Has a Aftertreatment Schedule
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Treat Aftertreatment Like Preventive Maintenance 

Fleets already understand the importance of scheduled oil changes. They don't wait for an engine problem before changing the oil because the cost of failure is too high.

DPF and DOC maintenance should be treated the same way.

A proactive restoration schedule gives fleets the opportunity to service components on their timeline, rather than waiting for a warning light or failure to dictate it.

This is especially important when you consider the potential replacement costs. A DPF can cost around $300 to replace, while a DOC may cost approximately $5,000 and an SCR unit around $18,000, depending on the OEM, platform, and market.

Preventing premature replacement can quickly become a significant fleet cost-saving opportunity.Aftertreatment cost (2)

Don't Forget The DOC 

One of the biggest gaps in aftertreatment maintenance is focusing on the Diesel Particulate Filter while overlooking the Diesel Oxidation Catalyst.

The DOC handles raw exhaust upstream of the DPF, meaning its condition can affect the performance of the rest of the aftertreatment system. Ceramex recommends restoring the DOC every other DPF service cycle to help maintain the health of the entire system.

Simply put: DPF maintenance shouldn't happen in isolation.

Let Your Fleet's Data Set the Interval 

OEM-recommended service intervals provide a starting point, but every fleet operates differently.

Duty cycle, idle time, mileage, operating environment, and vehicle application can all affect how quickly aftertreatment components require attention. That's why fleets should use their own restoration and fallout data to determine whether their current PM interval is working.

If fallout begins climbing, it may be time to shorten the interval rather than continuing to run components until failure.

The goal isn't to service filters unnecessarily. It's to find the interval that keeps failures, downtime, and replacement costs under control.

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Take Control Before the Warning Light  

Aftertreatment doesn't have to be unpredictable.

With a scheduled DPF and DOC restoration program, fleets can move away from reacting to failures and toward making maintenance decisions based on their own operating data.

Ceramex North America helps fleets do exactly that through XPURGE® aqueous restoration and VERITEX® and VERICAT® validation technology, restoring filters to meet or exceed 95% of OEM specification and verifying performance before components return to service.

Don't wait for the dashboard to decide when your truck comes off the road. Make aftertreatment restoration part of the plan.

Xpurge and Veritex

The Bottom Line

The difference between reactive and proactive aftertreatment maintenance comes down to one thing: who controls the downtime.

Waiting for a dashboard warning means letting a failure determine when a truck comes off the road. A scheduled, data-driven restoration program gives fleets more control over when maintenance happens while helping reduce unexpected failures, premature component replacement, and costly downtime.

By regularly restoring both DPFs and DOCs, tracking fallout rates, and adjusting service intervals based on real fleet data, aftertreatment maintenance becomes less of a guessing game and more of a predictable part of preventive maintenance.

The warning light shouldn't be your maintenance schedule. Plan ahead, restore proactively, and keep your fleet moving.

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Want to Learn More? Download the full whitepaper:

This blog only scratches the surface. In our full whitepaper, we take a deeper look at the data, misconceptions, and real-world practices shaping aftertreatment maintenance today.

Read the full whitepaper to learn more about:

  • What separates proactive aftertreatment programs from reactive ones
  • The potential costs of DPF, DOC, and SCR replacement
  • Real-world examples of fleets extending component life through restoration

Ready to take a deeper dive? Read the full whitepaper to see how a data-driven restoration strategy can help your fleet take greater control of aftertreatment maintenance. 

 Ceramex North America 

DPF & DOC Restoration