Diesel Oxidation Catalyst Cleaning

Restore Cleaner, More Efficient Emissions Performance With Professional DOC Cleaning

Diesel oxidation catalyst (DOC) cleaning is essential for maintaining proper emissions flow and keeping your diesel system operating efficiently. Our DOC cleaning process removes soot, oil residue, unburned hydrocarbons, and other contaminants that restrict flow and reduce emissions performance. Call us today.

Comprehensive DOC Cleaning, Inspection & Testing

Our DOC cleaning service is designed to restore proper airflow and support emissions compliance. Every DOC receives:

• Complete removal and visual inspection
• High‑pressure air cleaning to remove loose soot and ash
• Thermal or chemical cleaning for stubborn oil and hydrocarbon buildup
• Post‑cleaning inspection and flow testing
• Detailed reporting on DOC condition and restriction levels

We return every DOC fully cleaned, tested, and ready for installation.

Trusted DOC Specialists Since 2013

Serving the Metro and North Atlanta area, we bring over 35 years of combined experience in diesel emissions systems. Our focus is simple: fast, reliable DOC cleaning with a 24‑hour turnaround to minimize downtime for commercial trucks, fleets, and heavy‑duty equipment.

Signs Your DOC May Need Cleaning

A restricted DOC can cause a range of performance and emissions issues. Common symptoms include:

• Reduced fuel efficiency
• Loss of power or sluggish performance
• Dashboard warning lights
• Failed emissions tests
• Excessive black smoke
• Higher operating temperatures
• Strong or unusual exhaust odors

Regular DOC cleaning is especially important for vehicles operating under heavy loads, frequent idling, or harsh environments.

Why Choose DPF Clean Tech

Experience, transparency, and specialized equipment set us apart:

• 24‑hour turnaround on most DOC cleanings
• Locally owned and operated since 2013
• 35+ years of combined emissions‑system expertise
• Independent — no franchise restrictions
• No charge when DPF cleanings fail to meet standards
• Free, timely estimates
• 3‑month free re‑clean guarantee for post‑service failures
• Aftermarket parts available with cleaning services
• Competitive pricing with price matching

We’ve built our reputation on honest service, dependable results, and processes that keep your emissions system performing at its best.

Contact Us

Our DOC cleaning process restores proper flow, supports emissions compliance, and extends the life of your emissions components. For best results, we recommend cleaning the DOC whenever the DPF is serviced.

Contact us today to schedule your diesel oxidation catalyst cleaning and experience the difference professional emissions‑system care can make.