Hydrogen Carbon Cleaning Performed on Toyota Coaster (1HZ) in Toyama, Japan
- 孝一 田﨑
- 3 hours ago
- 5 min read
We recently performed a Hydrogen Gas Carbon Cleaning service on a Toyota Coaster (1HZ diesel engine) for a customer in Toyama Prefecture.
Current Mileage: Approx. 41,020 km
Engine Specs: 1HZ / 4,163 cc Water-cooled In-line 6-cylinder SOHC 12-Valve Diesel Engine
Max Output: 130 PS (96 kW) / 3,800 rpm
Max Torque: 284 N·m (29.0 kg·m) / 2,200 rpm
Reason for Service:
As the vehicle's mileage continues to accumulate, this service was performed as an engine refresh to maintain smooth performance and longevity for this iconic commercial bus engine.
Simultaneous Diesel Fuel Line Treatment:
Since the non-DPF 1HZ engine does not require DPF cleaner, we recommended Moty's M656 Diesel Fuel Additive. Specifically formulated for diesel engines, M656 prevents fuel line and injector issues while optimizing combustion efficiency. We poured the Moty's M656 directly into the fuel tank prior to starting the treatment.
Service Procedure:
After completing initial inspection checks—including engine noise, physical vibration, and tailpipe exhaust pressure—we began injecting hydrogen gas into the intake.
We started at an initial flow rate of 100 L/h and gradually increased the hydrogen intake volume while carefully monitoring the engine's real-time condition.
Scroll down for during-service impressions! ↓↓↓
In-Service Impressions & Observations ↓↓↓
To allow Moty's M656 to circulate thoroughly through the diesel fuel lines, we revved the accelerator a few times. At first, noticeable black smoke emitted from the exhaust.
5 Minutes In: A slightly damp exhaust gas began emitting from the tailpipe. Checking the muffler outlet showed that while exhaust pressure was sufficient, there was a subtle wave (unsteadiness) in the exhaust flow. We proceeded with the service while fine-tuning the hydrogen volume to see if this flow unsteadiness would clear up.
10 Minutes In: Visible water vapor started coming out of the exhaust tailpipe. We adjusted the hydrogen injection rate as we moved forward.
25 Minutes In: Both engine operational noise and physical vibration visibly subsided. At this stage, we locked in the hydrogen injection flow rate.
40 Minutes In: We revved the accelerator a few times to test engine response. Rechecking the tailpipe confirmed that the earlier flow unsteadiness had completely resolved into a smooth, steady exhaust output. The initial black smoke had also cleared up significantly. We then resumed fine-tuning the hydrogen rate.
50 Minutes In: Checking the muffler again, the exhaust gas felt dry, confirming that clean and optimized combustion was taking place in the combustion chambers.
65 Minutes In: After 65 minutes of controlled hydrogen treatment and continuous adjustments, we confirmed perfectly stable idling, reduced engine noise, and consistent exhaust output. The cleaning service was successfully completed!
Customer Impressions & Feedback After Service ↓↓↓
Featured Product: Moty's M656 Diesel Fuel Additive
The injector cleaner used simultaneously during this service is Moty's M656, a high-performance additive designed specifically for diesel engines.
Key Benefits & Performance Features
Dramatically Improves Combustion Efficiency: Significantly suppresses the formation of black smoke and unburned soot particles.
Extends DPF Filter Lifespan: Reduces Particulate Matter (PM) emissions—the primary cause of Diesel Particulate Filter (DPF) clogging—to help prolong DPF service life.
Superior Injection System Cleansing: Cleans combustion chamber carbon deposits while preventing residue buildup inside high-pressure common-rail storage chambers and injector nozzles operating under high-temperature, high-load conditions.
Restores Power & Mileage: Keeps the entire combustion system clean, enabling restored engine torque and improved overall fuel economy (MPG).
Customer Feedback After Service ↓↓↓
We received the following great feedback from the owner a few days after the service:
Eliminated Black Smoke: "Even when pressing hard on the accelerator, no black smoke comes out anymore, and the engine is running in top condition!"
Quieter Operation: "The engine sound has become noticeably quieter! Thank you so much."
We are thrilled that the owner could feel such immediate, clear results in daily driving!
Why Hydrogen Carbon Cleaning Restores Diesel Engine Performance
Carbon and soot deposits affect diesel engine reliability far more than most owners realize.
Removing carbon buildup with Hydrogen Carbon Cleaning restores optimal combustion efficiency, delivering major benefits for diesel engines like the 1HZ:
Reduces Black Smoke & Emissions: Restoring clean combustion prevents the generation of excess soot and unburned fuel smoke.
Improves Drivability & Response: Lowering internal engine friction makes throttle response significantly smoother and more linear.
Enhances Fuel Economy (MPG) & Quietness: Suppressing noise and vibration leads to a smoother ride while maximizing fuel mileage.
Lowers Engine Failure Risks: Minimizing physical strain on internal engine components helps protect against unexpected mechanical breakdowns.
Closing Remarks
We are delighted to hear that the reduction in noise and vibration, as well as the boosted fuel economy, made such a positive difference!
For heavy-duty diesel engines, we highly recommend regular Hydrogen Carbon Cleaning as part of your routine preventive maintenance routine.
If you ever have any questions or notice anything further, please feel free to contact us anytime. Thank you very much for choosing our service! We look forward to serving you again in the future.
At e-BLUE, we never treat any two vehicles the same. We carefully inspect and monitor the specific condition of each individual engine throughout the entire process, custom-tuning the hydrogen delivery rate to match its needs. This tailored approach drastically maximizes the overall cleaning efficiency and delivers far superior results.
If you have any questions or would like to learn more about our services, please feel free to reach out to us at any time.
Thank you for your continued support of e-BLUE and our Hydrogen Gas Carbon Cleaning services. We look forward to helping you restore your engine's peak performance!
For bookings and inquiries, you can reach us by phone or email. If you send us an email, we will get back to you as soon as we review your message. Thank you for your patience!
Phone: +81-90-8262-1052
Email: eblue2022kt@gmail.com
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