Greentech G10 Gasoline Fuel Saver — Cars, SUVs & Taxis (up to 100 L)
- 5–25% less fuel in documented results*
- About 10 years, no maintenance
- Patented in multiple countries
$189.00
One-time price · about $1.58 a month over its 10-year life- More kilometres per tank: the fuel burns more completely, with lower CO and HC.
- A lighter throttle: owners report easier pulling away and smoother climbs.
- 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. Ask the workshop for the labour cost first.
- 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 →
Also available in a blister pack →
*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 cars, SUVs and taxis
Sedans & family carstanks up to 100 L
Taxis & ride-hailingevery kilometre counts
SUVs & crossoversgasoline enginesAny gasoline tank up to 100 litres, including a boat's built-in tank (drop it in through the fuel fill). Want the air side treated too? The G11 adds the Air Refiner.
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.
🇻🇳Vietnam · Minh Phú Seafood18 → 16litres per 100 km: a month after fitting, the driver asked the company to lower his car’s fuel quotaCase study →
🇦🇪UAE · Belhasa Engineering & ContractingG11+24%km per litre on a gasoline Toyota Hilux in city driving: 8.97 → 11.14Signed letter →
🇭🇺Hungary · owner’s fuel recordG11−20.3%Suzuki Swift 1.3: 6.90 → 5.50 litres per 100 kmOwners’ records →30 named fleets, plants and public agenciesin 8 countries, each with the original documentSee every case →“I used to have to press hard on the gas-pedal in order to make it to the top of the steep hill on my way home … Now I only have to press it about half way, and the car easily climbs to the top of the hill.”
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 →
Cars are fitted at a workshop
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.

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 LEnhancer
G10up to 100 LEnhancerThis model
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
- G10 fuel enhancer (100 L) × 1
- Serial-numbered security label
- Gift box
- Fuel
- Gasoline
- Tank
- Up to 100 litres
- In the box
- Fuel enhancer (100 L) × 1, gift box
- Fitting
- 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. No wiring, no engine changes
- 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?
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. 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 boat with a built-in gasoline tank up to 100 L takes one G10, dropped in through the fuel fill (a standard 1.5-inch fill passes it); over 100 L, ask us for a made-to-order unit. 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 G10: one enhancer, about ten years, no maintenance.
Ships from Taiwan by FedEx · free over US$150 · 12-month product warranty



