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Methods & references

Here we document the technical principles, applicable standards and the orders of magnitude we communicate. The figures are typical values that vary by vehicle, condition and usage — never guarantees of outcome.

Our methods and their references

Hydrogen decarbonization: Internal engine cleaning by injecting hydrogen into the air intake, with no disassembly. The process has been used professionally in the automotive industry for over 20 years. Typically observed fuel saving: 5 to 10% in mixed driving, more on a heavily fouled engine — varying with the engine’s actual condition.
E85 conversion — carbon footprint: The roughly 50% reduction in “well-to-wheel” CO₂ emissions versus fossil petrol is based on reference life-cycle assessments of bioethanol (ISO 14040 / 14044 type methodology, ADEME work). The net fuel-budget saving (typically 30 to 40%) depends on the local E85 price, the vehicle and the mileage.
E85 conversion — type approval: Installation of an approved conversion box (standard 99/96/CE). The modification is declared to the insurer and recorded on the registration document via the DREAL — a step included in the service.
Dry steam cleaning: Dry steam at about 180 °C, with no chemical detergent and very low water use (1 to 5 litres per vehicle, versus 100 to 200 litres for a conventional wash). High-temperature steam disinfection is a recognised principle of hygiene protocols.
Headlight restoration: Headlight restoration by progressive sanding (P800 → P3000), polishing and a protective UV varnish, with a 1-year warranty. This repair-first approach avoids replacing polycarbonate parts (circular economy).
ECU remapping: A service intended for specific use (track / performance). It must be declared to the insurer and may void the manufacturer’s warranty. The customer checks compliance with their usage and insurance.
Tax notice: VAT not applicable, article 293 B of the French General Tax Code. Free quote before any work; no service is carried out without the customer’s explicit agreement.

The figures given are typical orders of magnitude drawn from professional practice and reference literature. They are not a guarantee of outcome: every vehicle is assessed beforehand.