Modern diesel engines build up carbon deposits that reduce power, increase fuel consumption, and cause expensive component failures. Our three-stage clean tackles them properly: it's a thorough, hands-on process.
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Modern diesel engines are fitted with EGR systems that route exhaust gases back through the intake manifold, combined with crankcase vapours that carry oil mist. Over time this combination creates thick carbon deposits inside your intake manifold, cylinder head, inlet valves, and EGR system, restricting airflow and killing performance.
At Core Diesel we've designed our own Three Stage Intake Clean system. Hydrogen carbon cleaning, injection clean, and top-end engine conditioner. It's a labour-intensive process: the vehicle is properly disassembled so every stage of the treatment reaches the areas that need it most.
SYMPTOMS WE ADDRESS
We don't just run a single machine. Our in-house designed process combines hydrogen cleaning, injection clean, and engine conditioner for a more thorough result than single-step alternatives.
Unlike quick-clean alternatives, our three-stage process involves full disassembly so the treatment reaches every affected area. Labour-intensive, but done right.
Carbon buildup causes injector, turbo, and DPF failures. Regular carbon cleaning is a fraction of the cost of replacing these components.
Most drivers notice improved throttle response, smoother idle, and better fuel economy within a few hundred kilometres of the clean.
Contact us to book. Carbon cleaning is typically carried out alongside a service or diagnostic appointment.
We administer the hydrogen clean, injection clean, and engine conditioner. The vehicle is fully disassembled for this stage, a thorough process that takes time but delivers a proper result.
Post-treatment diagnostic scan confirms fault codes are cleared. We road test before returning the vehicle.
Common signs: reduced power, increased smoke on acceleration, poor fuel economy, rough idle, DPF warning light, or high EGT readings. If it's been more than 70,000km since your last clean, it's worth doing preventatively.
The three-stage process typically takes 2–3 hours. We recommend booking it alongside your next service.
We recommend every 50,000–70,000km as preventative maintenance. Vehicles used for frequent short trips or city driving may benefit from more regular cleaning.
Carbon cleaning combined with DPF regeneration resolves DPF warning lights in many cases. If the DPF is damaged or beyond regeneration, cleaning alone won't fix it. We'll assess this during the pre-clean diagnostic scan.
Our three-stage process significantly reduces carbon buildup throughout the intake and combustion system. For heavily built-up engines, a second treatment may be recommended.


Core Diesel has been the Fraser Coast's go-to diesel workshop for over a decade. From logbook servicing and major engine rebuilds to ECU remapping and 24/7 mobile callouts, our team of experienced diesel technicians handles it all in-house, using the latest diagnostic tools and equipment, with a commitment to straight-talking service and zero unnecessary upselling.
The only workshop in the Fraser Coast region with an NHVR-approved Brake Shaker Test Unit, a legal requirement for heavy vehicle certification.
Deep knowledge of RAM, Silverado, and F-150 mechanics, rare outside capital cities. Parts sourced, issues diagnosed, jobs done properly.
Every job is documented with photos and video reports so you know exactly what was found and what was done.
All repairs are backed by our workmanship warranty. No hidden costs, no unnecessary work recommended.
"Took my 4WD to these guys when no one else could diagnose and fix it. Issue was found and fixed that day. These guys were recommended by a friend. Couldn't be happier."
Clinton Davis"Video progress the whole service and constant communication so you know what's going on. Seems like a bunch of genuine blokes who love working on cars."
Jordan Francis"Core Diesel have our entire fleet of trucks prioritised and professionally serviced. Always good advice on keeping things in tip-top shape."
Brett LukeOur team will confirm your booking within the hour during business hours. Mon–Thu 7am–4pm, Fri 7am–2pm.