Patented fuel-enhancement technology · Designed and made in Taiwan

Less fuel. Lower emissions.
No engine modification.

Greentech is a patented, passive fuel enhancer that sits in the fuel tank: more complete combustion, less smoke and exhaust, lower fuel bills. Twenty years, independent tests in 15 countries, 58,000 serialised units on the road.

Single vehicle? Buy online →
Greentech D51 diesel fuel enhancer kit with Air RefinerThis is it. It sits in the fuel tank.See all 13 models →
5–25%less fuel in published tests
58,000+serialised units in the field
15countries with independent tests
10 yrsin the tank, maintenance-free

Results vary with engine, load and duty.

01 · Products

Start with the product

A patented, passive fuel enhancer — Proprietary Greentech Fuel Enhancing Technology helps the fuel atomize finer and burn more completely.

Greentech G11 gasoline fuel enhancer with Air Refiner
Gasoline

Gasoline Fuel Enhancer

Cars, taxis, motorcycles, scooters and small boats

Greentech D51 diesel fuel enhancer with Air Refiner
Diesel

Diesel Fuel Enhancer

Trucks, buses, machinery, generators and small boats

Greentech gas saving module on the gas train of a heat-treatment furnace
LPG · PNG · CNG

Industrial Gas Saving Module

On the gas line to boilers, furnaces, kilns and dryers

LPG / CNG product page →
Greentech MFS-T10000 marine fuel saver
Marine

Greentech Marine Fuel Saver

Ships: one MFS-T10000 per 10,000 L of tank capacity, placed in the tank

Marine Fuel Saver →

Pick by tank size

One unit per tank; separate tanks each take their own.

  • Greentech G-Ball
    ≤ 20 LG-Ball · D-BallMotorcycles, scooters and small engines
  • Greentech G10A
    ≤ 60 LG10ASmall cars
  • Greentech G10
    ≤ 100 LG10 · G11 · D10 · D11Cars, SUVs, pickups, vans and taxis
  • Greentech D20
    ≤ 200 LD20 · D21Buses, twin-tank trucks and excavators
  • Greentech D50
    ≤ 500 LD50 · D51Heavy trucks, loaders and large generators
  • Greentech MFS-T10000
    10,000 LMFS-T10000Ships: one per 10,000 L of tank
  • Greentech gas saving module
    Gas lineGas Saving ModuleBoilers, furnaces and kilns on LPG, PNG or CNG
  • Not sure?Answer four questions in the Product Selector.Product Selector →
03 · Fitting

Fitted at the next refuel

A Greentech fuel enhancer being dropped into a fuel tank through the filler neck

Trucks, buses, generators and boats: in through the filler. On most cars the filler has an anti-siphon valve, so please don't push it down the filler: a workshop can fit it through the fuel-pump opening.

  1. 1

    Tell us what you run

    Equipment, how many, and tank sizes

  2. 2

    We match models and quote

    Your local distributor, or Greentech in Taiwan where there is none

  3. 3

    Fitted at the next refuel

    Trucks and machines take it at refuelling; most cars are fitted at a workshop. About ten years without maintenance

Gas modules are fitted on the gas line by trained installers; ships start with a pre-installation survey. Fuel is hazardous and flammable: do not smoke near the fuel tank.

Installation guide (PDF): English · 中文

Watch

See it go in, see it run

How it goes inCars, trucks, buses, generators and boats
Motorcycle exhaust, before and afterTwo motorcycles · Hanoi
Fitting a coach0:15 · Vietnam
Modules along a ceramics kilnSonya Ceramics · India
Modules on a hardening furnaceMSM Spring · India
04 · Results

What customers measured

Fleets, plants and official tests. Every card opens the original document.

Measured, and kept in use, by fleets and plants including

Vietnam · Grab9.5%

average saving on 20 motorbikes, each ridden the same 20 km before and after fitting

UAE · Belhasa15–25%

average saving on 15 light and heavy vehicles over three months, signed by the general manager

Türkiye · ENK Plastik18.4%

less diesel on a 2011 MAN truck with a D50: 38 → 31 L per 100 km

India · KSRTC9 of 10

state buses moved from BS-II to BS-IV smoke, with no engine work

Government agencies and independent laboratories have tested Greentech in 15 countries. The original reports are on the Official Reports page →

Distributors

One home base. Local distributors.

Greentech is based in Kaohsiung, Taiwan. In each country, a local authorised distributor sells, installs and services it.

IndiaVietnamUAEQatarSaudi ArabiaTürkiyeEthiopia

Now recruiting: Southeast Asia, the Middle East, Africa, South Asia, Central Asia, Latin America and Eastern Europe.

Questions

Which model do I need?

Pick by fuel and tank size, one unit per tank: G-Ball or D-Ball up to 20 L, G10A up to 60 L, G10 / G11 or D10 / D11 up to 100 L, D20 / D21 up to 200 L, D50 / D51 up to 500 L. Ships take one MFS-T10000 per 10,000 L of tank; gas burners take the Industrial Gas Saving Module. Product Selector →

Does it work on gasoline, diesel and gas?

Yes. The Gasoline and Diesel Fuel Enhancers go into the fuel tank; the Industrial Gas Saving Module goes on the gas line to burners running on LPG, PNG or CNG; ships use the Greentech Marine Fuel Saver.

How much will we save?

Published results mostly fall between 5% and 25% less fuel. The figure depends on the engine and its duty: an engine that is already efficient starts from a bigger base, so the same gain shows up as a smaller percentage. Results vary with engine, load and duty. How the saving is calculated →

Is there any maintenance?

None. There are no consumables, nothing is wired or changed on the engine, and the unit stays in the tank for about ten years.

Where do we buy?

From the authorised Greentech distributor in your country, or directly from Greentech in Taiwan where there is none. Single vehicles can also be ordered online. Find a distributor →

More questions →

Tell us what you run

Vehicles, machines, burners or boats: we match the models and send a quote.

Or find your local distributor →
EN|中文