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. Based on results observed across multiple documented applications, we have reason to expect an effect in suitable small petrol and diesel engines. 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 |
| Application | Sprayed onto the existing air filter · 20–45 min · no downtime |
| Reapplication | Reapplied at each service (small engines are serviced quickly) |
| 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 existing air filter, where it dries into a thin, breathable nano-coating. As the engine draws air through that treated surface, the coating conditions the intake air before combustion — supporting a cleaner, more complete and more efficient burn. For a fleet of small engines, that means the same treatment works across every engine that breathes through a treatable filter.
What it is
- A passive nanostructured intake-air treatment
- Applied to the air filter you already service
- 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 the per-unit savings aggregate. The effect repeats on every unit, every time it runs.
Emissions in sensitive and shared spaces
Small engines often run in recreational, agricultural or built-up areas where air quality matters. A more complete burn means less CO, unburned hydrocarbons and soot close to people.
Simple, low-effort maintenance
Small engines are serviced quickly and without specialist tools. NanoEFX is a spray onto the existing filter, so treating them adds no complexity.
Want the numbers for your own fleet? The ROI & EU ETS calculator models fuel-cost and carbon-cost savings from your own figures — you set the efficiency assumption.
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 applies to small internal-combustion engines that breathe through a treatable air filter, and it conditions the intake air regardless of the fuel burned.
Equipment types
Fuels
No workshop, no downtime, no new hardware
NanoEFX is applied by your own team, onto the air filter they already remove at service. It rides on the maintenance you do anyway rather than adding a new one.
What a cleaner burn means for a fleet of small engines
NanoEFX doesn't add energy or oxygen and doesn't modify your engine — it helps the engine waste less of the energy already in the fuel. NOx response is engine- and control-system dependent.
Common questions from operators
Does NanoEFX work on small petrol and diesel engines?
Will it change the engine?
How often does it need reapplying?
Is it suitable for 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.