Industries & Engines

NanoEFX for construction & heavy equipment

NanoEFX is a passive, water-based air-filter treatment for combustion engines with a treatable intake filter or medium. Results across documented applications give us reason to expect an effect in suitable construction machinery, but duty cycle matters. Our construction-relevant evidence is mixed: heavy tippers improved by around 6% in fuel efficiency measured in km/L, while the loader results in our records were negative.

Excavators working on a construction site at sunset
Heavy machinery burns a lot of fuel on site — so a gain in combustion efficiency compounds across a fleet and a project.
NanoEFX for construction — at a glance
TreatmentPassive, water-based air-filter coating — not a fuel additive or ECU remap
Applies toExcavators · Wheel loaders · Dozers · Dump trucks · Cranes · Pavers & compressors
FuelsDiesel · Biodiesel · HVO renewable diesel
ApplicationSprayed onto the existing air filter · 20–45 min · no downtime
ReapplicationBy run-hours or distance, per machine and duty cycle
Engine changesNone — no modification, remap or retrofit
Regulatory contextEU Stage V engine-emission standards (non-road mobile machinery)
What it is

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 plant fleet, 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

See exactly how it works and the full ingredient system →

Why it matters

Three pressures every site operator already feels

These are the forces that make intake-air efficiency worth acting on — independent of any single engine or duty cycle.

Off-road diesel is a major project cost

Heavy machinery is fuel-intensive, and fuel is a large, controllable line in the project budget. Because the effect repeats across every operating hour, even a modest efficiency gain accumulates across a fleet.

Non-road emission standards and clean-air zones

Non-road mobile machinery falls under tightening emission standards such as EU Stage V, and cities increasingly restrict higher-emission plant. A more complete burn means less CO, unburned hydrocarbons and soot.

ESG expectations on tenders

Contractors are increasingly asked to measure and report site emissions. Burning less fuel directly lowers the Scope 1 emissions reported for a project.

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) →

What we have measured

Our own trials in this duty cycle

Our construction-relevant records are tippers and heavy haulage on the one hand, and loaders on the other — and those two groups did not behave the same way. Both are shown.

What this duty cycle actually consumes

The 10 tonne tippers in our records run at 1.97 to 2.15 km/L before treatment. At that consumption level a small percentage moves a large quantity of diesel, which is why the calculated CO₂ effect on this equipment is bigger than on vehicles with far larger percentage gains.

Japan · 4 heavy diesels

Inabe Logistics Service

+6.3%

Two 10 t tippers and two trucks, all within a 2.2-point band — the narrowest spread in our records.

Read the trial
Japan · 9 vehicles incl. 3 loaders

Maruun Transport

3 of 9 worse

Both 2-unit loaders consumed more after treatment. On loader-type equipment we have no positive evidence.

Read the trial

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.

What it covers

From a 40-tonne excavator to a site compressor

A site is rarely one machine. NanoEFX applies to construction engines that breathe through a treatable air filter, and it conditions the intake air regardless of the fuel burned.

Equipment types

Excavators Wheel loaders Dozers Dump trucks Cranes Pavers & compressors

Fuels

Diesel Biodiesel HVO renewable diesel
How it's applied

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.

NanoEFX water-based spray being applied evenly to an engine air filter
Application is a spray onto the existing air filter — no parts, no calibration, no mechanic. It dries to a thin, breathable coating and the filter is refitted.
Applied by your own team 20–45 min per machine Machinery: reapplied by run-hours or distance No engine modification No downtime

What a cleaner burn means for a plant fleet

Lower fuel spend — more complete combustion means less wasted fuel.
Lower CO₂ for ESG reporting — burning less fuel lowers your Scope 1 emissions.
More complete combustion would generally reduce CO and unburned hydrocarbons; our one accredited exhaust measurement recorded lower CO, HC and NOx on one vehicle.
Less carbon buildup — a cleaner burn forms fewer new deposits, easing maintenance over time.

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.

Construction — FAQ

Common questions from operators

Does NanoEFX work on off-road diesel machinery?
We have reason to expect an effect in suitable off-road combustion engines with a treatable intake filter or medium, based on results observed across multiple documented applications. The effect is not uniform across every machine or duty cycle: in our construction-relevant records, heavy tippers improved by around 6% in fuel efficiency while the loader results were negative. For that reason we recommend measuring the result on the operator's own equipment.
Will it change the engine or need an ECU remap?
No. NanoEFX is a passive coating on the air filter. It is not a fuel additive, an oil additive, an ECU remap or a mechanical retrofit, and it makes no change to the engine’s hardware or software.
How often does it need reapplying on machinery?
Reapplication is judged by run-hours or distance depending on the machine and its duty cycle. Each application takes about 20 to 45 minutes, is done by your own team, and adds no downtime because it rides on servicing you already carry out.
Does it help with Stage V and low-emission construction zones?
It supports a more complete burn — less CO, unburned hydrocarbons and soot. It does not change an engine’s Stage V or Tier 4 classification: those are type-approval categories that depend on the engine and its aftertreatment, and nothing applied to an air filter alters them. On the equipment closest to construction duty our own evidence is mixed — heavy tippers improved by around 6% in fuel efficiency measured in km/L, while both loaders in our records went the wrong way. Our accredited emissions measurement (JATA: CO −30.4%, HC −23.3%, NOx −15.1%) was made on a road vehicle.
Does it affect a DPF, SCR, EGR or AdBlue system?
We have not measured it, and we will not tell you it is proven safe for your aftertreatment system. What is established is what the treatment is and is not: a passive coating on the filter medium — not a fuel additive, not an oil additive, not an ECU remap and not a retrofit — so nothing is dosed into the fuel or the oil. What the coating does contain is silver and mineral particles, and they sit on the filter surface, in the intake path. Whether any of that material is carried downstream in service is not something we have measured, and neither is anything else that would settle the question for you: DPF ash loading, regeneration frequency, EGR valve and cooler fouling, AdBlue/DEF consumption, SCR conversion efficiency, or lambda and NOx sensor behaviour. None of the 386 individual measurements we hold records any of them. What we can state is that nothing applied to an air filter changes a vehicle’s type-approval category — Euro VI, Stage V and Tier 4 depend on the engine and its aftertreatment. If you run aftertreatment-equipped vehicles, put those readings into the pilot and measure them alongside fuel.
Prove it on your own fleet

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.

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