Cleaner engines. More power. Less downtime.

Get your diesel restored in 2 hours with Soot Slayer — Cincinnati’s only deep-engine cleaning that pays for itself in repair savings.

Reduce regens and restore horsepower.
Boost fuel economy and throttle response
Trusted by local fleets and owner-operators

Real-World Results

Drivers see immediate improvements after treatment, including:

Faster throttle response and pulling power
Fewer derates and forced regens
Improved fuel economy and lower DEF usage
Extended life of DPF, EGR, and sensors
Peace of mind knowing your engine is running clean

Watch how our exclusive Soot Slayer system restores power, eliminates regens, and extends the life of your diesel engine — all in under two hours.

Soot Slayer: The 2-Hour Engine Reset That Pays for Itself

Every diesel engine builds up soot, carbon, and sludge over time. It creeps into your injectors, coats your turbo, and clogs your EGR system until performance drops and regens feel never-ending.

Traditional shops throw parts at the problem. We fix the root cause.

At E&J Commercial Diesel, our Soot Slayer deep engine cleaning system clears buildup throughout your injectors, turbo, EGR, and DPF — without tearing anything apart. Think of it like dialysis for your diesel. In just two hours, most trucks leave our shop breathing easier, pulling stronger, and regening less often.

Book Your Soot Slayer™ Service Today

Turbochargers

Restores sticky vanes and clears soot-coated blades, boosting acceleration and horsepower.

Fuel Injectors

Cleans spray patterns for smoother combustion, better fuel burn, and fewer misfires.

EGR & EGR Coolers

Clears carbon pathways for proper exhaust flow and temperature control, preventing costly failures.

Diesel Particulate Filter (DPF)

Reduces soot load, cutting forced regens and helping you avoid expensive replacements.

Why Truckers Swear by Soot Slayer?

No Disassembly, No Guesswork

Completed in under two hours, back on the road the same day.

Proven Process

We provide before-and-after data so you see measurable improvements.

Built for Truckers

Designed and tested on our own fleet before being offered to customers.

Got Questions? We’ve Got Answers.

Most shops that “clean your DPF” are only tackling one piece of the problem. A DPF clean removes soot from the filter, but it doesn’t touch the buildup happening in your injectors, turbo, or EGR system. That means you’re cleaning the symptom, not the cause. The Soot Slayer deep engine cleaning system addresses the entire aftertreatment and air/fuel pathway — injectors, turbochargers, EGR, EGR coolers, and DPF. By clearing the whole system in one process, you reduce regens, restore lost horsepower, and prevent the same issues from coming back weeks later. In other words, this isn’t a patch. It’s a reset.

Many owner-operators schedule a Soot Slayer cleaning once a year as part of routine maintenance. If your truck is showing signs of frequent regens, sluggish throttle response, poor fuel economy, or you’re facing costly injector/DPF replacements, it’s worth doing sooner. Fleets often schedule trucks on a rotating basis so downtime is minimal. For hard-working local trucks in stop-and-go conditions, we sometimes recommend shorter intervals. The beauty of this service is that it’s fast, affordable, and preventive — saving you thousands in parts and hours of lost revenue later.

Absolutely. Fleets get hit hardest by downtime. A single truck sidelined by a regen or turbo issue can cost a company thousands per day in missed loads and late deliveries. With Soot Slayer™, fleets see:

Reduced forced regens and fewer road calls
Lower fuel and DEF costs
Longer life on injectors, turbos, and sensors
More predictable maintenance schedules

For multi-truck operations, fewer breakdowns and less downtime add up to major cost savings. That’s why many Cincinnati-area fleets trust us to keep their rigs on the road.

Yes. When injectors and turbos are clogged with soot and carbon, combustion is inefficient — meaning you burn more fuel for less power. After a Soot Slayer™ cleaning, many drivers report noticeable fuel savings and reduced DEF usage. Cleaner combustion means more miles per gallon and less wasted money at the pump.

Most treatments are completed in about two hours. That means you can schedule service in the morning and be back on the road the same day — no overnight downtime, no waiting on parts, and no guesswork about when you’ll be rolling again.