Greentech G10A Gasoline Fuel Saver — Compact Cars & Small Engines (up to 60 L)
- 5–25% less fuel in documented results*
- About 10 years, no maintenance
- Patented in multiple countries
$129.00
One-time price · about $1.08 a month over its 10-year life- Government-tested: 17.95% less fuel on a Suzuki Dzire in an official test in Ethiopia.
- Cleaner exhaust: carbon monoxide at idle down to zero in a Vietnamese government test.
- Compact cars: fitted at a workshop. The tank is drained and the enhancer goes in through the fuel-pump opening or where the filler pipe joins the tank. Portable generators: drop it in.
- About 10 years: no maintenance, nothing to replace.
- Free shipping over US$150FedEx from Taiwan
- 12-month product warrantycovers the unit itself
- Genuine, serial-numberedverify it online
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Buying for a fleet? Get a volume quote →
*Documented fleet and test results. Each vehicle is measured against its own original fuel use, so the same fuel saved shows as a different percentage on different vehicles. Results vary with engine condition, load and route.
Made for compact cars and small gasoline engines
Compact & family carstanks up to 60 L
City taxishigh daily mileage
Portable generatorsand other small enginesAny gasoline tank up to 60 litres, including a small boat's built-in tank (drop it in through the fuel fill). Larger car or boat? The G10 covers up to 100 L.
Measured by the people who run them
Operators measured their own vehicles and machines before and after fitting. Tap a card for the original document.
🇪🇹Ethiopia · government test (ECAE)G10A−17.95%fuel on a Suzuki Dzire: 20.74 → 25.28 km per litreTest report →
🇻🇳Vietnam · Cần Thơ inspection centreG10ACO → 0carbon monoxide at idle on a car, government exhaust test; hydrocarbons 12 → 3 ppmCase study →🇻🇳Vietnam · Cần Thơ inspection centreG10A-20L−93.6% COcarbon monoxide at idle on a motorcycle, government exhaust test; hydrocarbons 97 → 25 ppmCase study →30 named fleets, plants and public agenciesin 8 countries, each with the original documentSee every case →Each vehicle is measured against its own original fuel use, so the same fuel saved shows as a different percentage on different vehicles. Results vary with engine condition, load and route. All test reports →
Compact cars at a workshop, generators drop it in
It depends on the application
The enhancer must be in direct contact with the fuel, so it always goes inside the fuel tank.
Take the fuel cap off. Can you see the fuel?
✓Yes: drop it in
Motorcycles and scooters, generators and stationary machines, some boats and other machinery: the fuel is right there, so it is simple to drop the enhancer in.
!No: many cars
The filler often has an anti-siphon valve. The tank is reached through the fuel-pump or fuel-sender service opening instead: a job for a workshop, with the fuel drained first.
- 1Fuel-pump / fuel-sender service opening (usually under the rear seat)
- 2Where the filler pipe joins the tank, underneath
- ✕Filler neck and its anti-siphon valve
Never force it down a car's filler.It can jam in the filler pipe, and the pump nozzle will then keep cutting off every time you refuel.
Not sure? Have a qualified mechanic or an authorized Greentech installer do it. Labour costs vary, so ask for a price first.
Installation guide (PDF):English · 中文
⚠Fuel is hazardous and flammable. Do not smoke near the fuel tank.
Portable generators
Do it yourself: open the cap and drop it in
- Open the fuel cap
- Drop the enhancer into the tank
- Close the cap and refuel as usual
Passenger cars are fitted in a workshop, so drivers come to you anyway. Distributors are appointed by country and product line.
Apply for the gasoline line →Partnership models →Greentech is a patented, passive fuel enhancer. Proprietary Greentech Fuel Enhancing Technology helps the fuel atomize finer and burn more completely: more of every litre turns into work, with lower CO and HC emissions and fewer engine carbon deposits.
How the technology works →
Product introduction and installation video. Motorcycles, trucks and machines take the enhancer through the filler; passenger cars are fitted at a workshop.
What could it save you?
Slide between 5% and 25%, the documented range.
Most documented results: 5–25% less fuel. Each vehicle is measured against its own original fuel use — the more efficient the vehicle, the bigger the denominator and the smaller the % looks, but the litres still add up. Results vary with engine condition, load and route.
Pick the size for your tank
G-Ballup to 20 LEnhancer
G10Aup to 60 LEnhancerThis model
G10up to 100 LEnhancer
G11up to 100 LEnhancer + Air RefinerChoose by fuel and tank size, one enhancer per tank. Models ending in 1 add the Air Refiner on the air intake. Product selector →
What you get
- G10A fuel enhancer (60 L) × 1
- Serial-numbered security label
- Fuel
- Gasoline
- Tank
- Up to 60 litres
- In the box
- Fuel enhancer (60 L) × 1
- Fitting
- Compact cars: at a workshop (tank drained; placed through the fuel-pump opening or where the filler pipe joins the tank). Portable generators: drop it into the tank
- Maintenance
- None
- Service life
- About 10 years
- Construction
- Aluminum alloy casing with patented internal components
- Warranty
- 12-month product warranty, activated by registering the serial number
- Shipping
- FedEx from Taiwan · free over US$150
Questions before you buy
How is it fitted to my car?
Compact cars are fitted at a workshop: the tank is drained, then the enhancer goes in through the fuel-pump opening, or where the filler pipe joins the tank underneath. On an ordinary car it does not go in through the filler, which often has an anti-siphon valve: forced down, it can jam, and refuelling keeps cutting off. Labour costs vary by area, so ask your workshop for a price first. Portable generators are different: open the cap and drop it in. See the fitting diagram ↑
Can a workshop become a distributor?
Yes, and workshops are a natural fit: passenger cars are fitted in a workshop, so drivers come to you anyway. Distributors are appointed by country and product line. Apply for the gasoline line →
How much will it save?
Documented fleet and test results run from 5% to 25% less fuel. Each vehicle is measured against its own original fuel use: that figure is the denominator, so the same fuel saved shows as a different percentage from one vehicle to the next. Results vary with engine condition, load and route; on the road, the gain is largest at steady cruising speed. Tip: write down your litres and kilometres (or engine hours) for the next couple of tanks before you fit it, and you will see your own number. Free fuel worksheet (Excel) · Online fleet fuel log
Is anything changed on the engine?
No. Nothing is cut, wired or reprogrammed and nothing is added to the fuel. The enhancer simply sits in the tank and keeps working for about ten years.
What does the warranty cover?
Register the serial number and your unit carries a 12-month product warranty. It covers the unit itself: if something goes wrong with it after installation, we replace it with a new one. Verify & register a product
Shipping, payment and returns
Orders leave Taiwan by FedEx within 1–3 working days, and delivery usually takes 3–7 days. Shipping is free on orders over US$150; below that it is US$29.99. Pay with PayPal, Apple Pay or Google Pay. If a unit arrives damaged or defective, we send you a new one. Payment & return policy
How do I know it is genuine?
Every unit carries a serial number (M plus ten digits) and a security label. Check it online before or after you buy, no account needed. Buy from Greentech or a listed distributor. Check a serial number · Find a distributor
Can I use it in a boat?
Yes, boats save fuel too. A small boat with a built-in gasoline tank up to 60 L takes one G10A, dropped in through the fuel fill (a standard 1.5-inch fill passes it). Water at the bottom of the tank or E10 gasoline is no problem for the casing. More complete combustion raises engine speed and output, so ask the engine maker first whether the engine has room for it. All boat sizes
Buying for a fleet?
Tell us your vehicles and tank sizes: we match a model to every tank and quote volume pricing. In some countries a local Greentech distributor serves you directly. Get a fleet quote · Find a distributor
Get more from every tank
The G10A: one enhancer, about ten years, no maintenance.
Ships from Taiwan by FedEx · free over US$150 · 12-month product warranty
Greentech G10A$129.00