NanoEFX for small & specialty engines
NanoEFX is a passive, water-based air-filter treatment for combustion engines with a treatable intake filter or intake medium. It can be applied to small petrol and diesel engines where such a filter or medium is present. We have not yet run a documented small-engine fuel trial, so we do not assign a sector-specific fuel-saving result to ATVs, pumps or portable gensets.
| Treatment | Passive, water-based air-filter coating — not a fuel additive or ECU remap |
|---|---|
| Applies to | ATVs & UTVs · Portable gensets · Pumps · Small petrol engines |
| Fuels | Petrol / gasoline · Diesel · LPG · HVO renewable diesel (no field validation) |
| Application | Existing filter treated (20–45 min) or pre-treated filter fitted |
| Reapplication | Reapplied at a regular interval, set per engine |
| Engine changes | None — no modification, remap or retrofit |
| Regulatory context | EU Stage V engine-emission standards (incl. small & off-road engines) |
A coating on the air filter — not a fuel additive or a remap
NanoEFX is sprayed onto the engine's air filter — the existing one, or a replacement filter treated in advance — where it dries into a thin, breathable nano-coating. As the engine draws air through that treated surface, the coating is designed to condition the intake air before combustion, with the aim of supporting a cleaner, more complete burn — what we have measured is set out below. For a fleet of small engines, that means the same treatment can be applied to every engine that breathes through a treatable filter — whether it lowers fuel use on a given engine is what a pilot measures.
What it is
- A passive nanostructured intake-air treatment
- Applied to the engine’s air filter
- Water-based — dries to a thin, breathable coating
- Works before combustion, at the intake-air stage
What it isn't
- A fuel additive or oil additive
- An ECU remap or tuning
- A mechanical retrofit or powered device
- Anything that changes how you operate
Three reasons small engines are worth treating
These are the forces that make intake-air efficiency worth acting on — independent of any single engine or duty cycle.
Many small engines add up
Individually each unit is small, but across a fleet of ATVs, pumps and portable gensets any per-unit savings would aggregate. A gain measured in a pilot adds up only if it holds over time and carries over to the other units — both are checked separately.
Emissions in sensitive and shared spaces
Small engines often run in recreational, agricultural or built-up areas where air quality matters. Combustion theory would expect a more complete burn to produce less CO and unburned hydrocarbons; we hold one accredited measurement on one vehicle and none on soot.
Simple, low-effort maintenance
Small engines need no specialist tools: NanoEFX is sprayed onto the existing filter, or a pre-treated filter is fitted, so treating them adds no complexity.
Want the numbers for your own fleet? The Fleet Fuel & Carbon ROI calculator models fuel-cost savings from your own figures and shows how carbon is priced for your country and fuel — added only where it is paid on top through emissions trading.
Regulatory sources: EU Stage V — Regulation (EU) 2016/1628 (non-road engines) · Other regions (USA, Japan, China, and more) →
No trial data from this sector
We have not run a documented trial on small engines — no mower, generator set of this size, pump or handheld equipment appears in our trial records.
The nearest evidence we hold
The nearest readings we hold are stationary exhaust snapshots taken in 2012 on small petrol vehicles at idle, including a Daihatsu Mira and a HIJET. They show large percentage changes in CO, but they were taken minutes after application with the engine idling, and one of them shows hydrocarbons rising. We publish them on the emissions page marked as indicative only, and they are not a basis for any claim about small-engine fleets.
What a trial here would have to look like
Small engines are actually the easiest case to test properly: they are numerous, cheap to run and identical to one another. Twenty treated units against twenty untreated, same task, same fuel, hours logged, over one season would settle it.
Stationary exhaust readings
Indicative onlyThe Daihatsu Mira and HIJET snapshots named above, with their limits — including the vehicle where hydrocarbons rose.
See the readings →All trial results, including the weak and mixed ones → · every individual measurement we hold
How a trial is run and what each method can show: measurement methodology. What we measured at the exhaust: emissions. Everything in one place: the evidence section.
From an ATV to a portable pump
Specialty fleets are rarely one machine. NanoEFX can be applied to small internal-combustion engines that breathe through a treatable air filter, and it works at the intake air, whatever the fuel burned.
Equipment types
Fuels
For the fuel marked above we have no documented field validation, so we make no performance claim for it.
No workshop, no retrofit, no new hardware
Your own team either fits a pre-treated filter, or treats the existing filter, lets it dry for at least 20 minutes and refits it.
What this could mean for a fleet of small engines
NanoEFX doesn't add energy or oxygen and doesn't modify your engine — it is designed to help the engine waste less of the energy already in the fuel. NOx response is engine- and control-system dependent.
Common questions from operators
Can NanoEFX be used on our small petrol and diesel engines — and what can we expect?
Does NanoEFX change the engine?
How is NanoEFX reapplied on small engines?
Can NanoEFX be used on portable gensets and pumps?
Don't take the claim — measure it
The most honest evidence is your own baseline. In a NanoEFX pilot you run a controlled trial on your own engines, measured against your own fuel data — and you only pay if it proves savings.