Tested by governments,
laboratories and fleets
Two decades of independent testing across 15 countries — government emission tests, standardized laboratory procedures, university research and fleet deployments. Every claim on this page names its source, its year and its test vehicle.
Government & Official Testing
Emission and fuel-economy tests by government agencies and official inspection centres, under published national standards.
Vehicle Technical Inspection Center, Can Tho
Official emission test — TCVN 6438:2018 · June 2025
Gasoline vehicles fitted with Model G10A
Idle emission measurements before and after installation. Download the report (PDF) →
Ethiopian Conformity Assessment Enterprise (ECAE)
Government conformity body — CES 6655:2021
Suzuki Dzire (gasoline) · Toyota Hilux (diesel)
Fuel economy measured in km/L before and after installation. Download the report (PDF) →
Department of Transport & Regional Services (DOTARS)
Government test facility T2335 · ADR-79/01 & ADR-81/01 · ISO 9001 laboratory
2006 Holden Commodore 3.6L sedan
Baseline vs installed averages under the Australian Design Rules test protocol.
Government & Commercial Fleets
Real vehicles on real routes, measured by the operators themselves.
KSRTC Government Bus Fleet
Karnataka State Road Transport Corporation · verified by Veritas Enterprises
10 TATA & Leyland buses, BS-II and BS-III
One bus could not be measured due to a vehicle fault — we count 9 of 10. Download the report (PDF) →
IFFCO Transport Division
One-month trial on heavy commercial vehicles
6 heavy-duty trucks, 550L tanks
Operator-reported AED 17,283 annual savings per vehicle against an AED 1,500 device. Download the report (PDF) →
Grab Ride-Hailing Fleet
Field trial in Ho Chi Minh City
20 commercial gasoline vehicles
Steady Routes Logistics
Fleet maintenance department, Riyadh
IVECO 2001 · BMC TUGRA 2019
Fleet committed to installing Greentech across the full fleet after the trial.
Anbessa & Sheger City Buses
Public city-bus operators, Addis Ababa
City bus fleets
GreenChoice Diesel Truck Trial
Distributor-run fleet trial
6 diesel trucks
Long-haul routes, measured against the fleet's own fuel records.
Independent Laboratories & Universities
Standardized procedures on instrumented vehicles, and the research behind the mechanism.
MGA Research — SAE J1321
Wisconsin Proving Grounds, controlled oval track
2005 Toyota Corolla 1.8L
Baseline vs installed configuration under the SAE J1321 procedure. MGA Research does not certify or endorse products; results relate to the tested vehicle.
California Environmental Engineering
FTP-75 and HWFET cycles in a controlled laboratory
Chevrolet Tahoe · Dodge RAM · Toyota Camry · Kenworth Class 8 & 9
All variables controlled: fuel quality, load, temperature, humidity and driving cycle.
Taipei Medical University
Graduate Institute of Biomedical Materials — FTIR and viscosity studies
Commercial 95 & 98 octane gasoline
FTIR spectra and viscometer measurements documenting the effect of the ceramic material on fuel.
Hong Kong Polytechnic University
Chassis dynamometer test
Instrumented test vehicle
Independent university dynamometer measurement.
Earlier testing history also includes an on-road consumption test witnessed by a TÜV Rheinland Taiwan inspector (2008), material testing by SGS, and emission tests at Taiwan EPA and ITRI facilities on Toyota, Honda, Nissan and Ford vehicles.
Quality, Patents & Safety
ISO 9001 & ISO 14001
Quality and environmental management systems, certified for our Kaohsiung manufacturing operation.
Invention Patents
Ceramic composition and fuel-optimization technology protected by invention patents in Taiwan, the United States and other jurisdictions.
Material Testing by SGS
Material safety and composition testing conducted by SGS.
No Engine Modification
Passive device — no chemicals, no electronics, no engine changes. Does not void the vehicle warranty.
Real-World Feedback
Direct feedback from fleet operators and long-term users.
We tested the device on 6 heavy vehicles. The average saving was 7.4% with a payback period of 30 days and ROI of 1,152%. The device lifetime is 10 years without maintenance costs.
The trucks with Greentech devices performed better in overall engine performance, with less exhaust emissions. We are looking forward to install Greentech across our entire fleet.
After 4 years of use, the emission reading was 0.13 — far below the 2.20 pass standard. The engine is stock, never opened or modified. Clean engine, complete combustion, and excellent performance.
Want these numbers for your own fleet?
Run a structured pilot on 3–5 vehicles with before-and-after data, or apply to distribute Greentech in your market.