Waste Services — Germany
Across five Waste Services refuse collection vehicles running fixed routes with their regular drivers, fuel consumption fell by a distance-weighted 18.2% over 21,830 km compared with the same vehicles’ own March–May baseline — measured from Waste Services’ own fleet management system, with the drivers not informed that the treatment had been applied.

| Operator | [operator address redacted] |
|---|---|
| Vehicles | 5 refuse collection vehicles (3× Iveco, 1× Volvo, 1× Mercedes), 7.2 t to 18 t bodies |
| Baseline | March, April and May 2026 — same vehicles, same depot, before any treatment |
| Trial window | 15 June to 24 July 2026, six evaluated weeks (trial still running) |
| Measured quantity | Average daily consumption in l/100 km |
| Data source | Waste Services’ own fleet management system plus daily operational records (tour, hours, distance, load) supplied by Waste Services |
| Route continuity | 83% of trial journeys ran to destinations that were also served during the baseline |
| Load | Average utilisation fell from 0.87 to 0.78 between the two periods — see the second chart |
| Blinding | Drivers were not informed that the air filters had been treated |
| Control group | None — comparison is against the vehicles’ own earlier baseline |
Every measurement, not just the best one
| Vehicle | Make | Baseline (l/100 km) | Trial (l/100 km) | Change |
|---|---|---|---|---|
| Vehicle 01 | Iveco | 25.70 | 20.22 | −21.3% |
| Vehicle 02 | Iveco | 22.22 | 20.47 | −7.9% |
| Vehicle 03 | Iveco | 24.21 | 16.03 | −33.8% |
| Vehicle 04 | Volvo | 23.35 | 19.61 | −16.0% |
| Vehicle 05 | Mercedes | 24.13 | 20.68 | −14.3% |
| Fleet | 23.92 | 19.23 | −19.6% simple · −18.2% distance-weighted |




These are the air filters the treatment was applied to, photographed by us on site at the Nottuln depot. Four photographs cover the five vehicles because two of them — Vehicle 01 and Vehicle 02 — are the same Iveco with the same 12 t box body and therefore the same filter; the operational records list them under the identical body class. The other three vehicles each run a different element, which is why no two of these photographs look alike. Together they document what was treated: standard OEM filters, in a working depot, not a laboratory. They are not a before-and-after comparison — the record carries no date and no application status for any of them, so nothing about the condition of a filter in these photographs should be read as a result.
Why we anonymise
Customer confidentiality is part of our professional standard.
We value the confidentiality of our customers, partners and data owners. Publicly presented test cases are therefore anonymised and do not disclose vehicle identities, vessel names, fleet details or commercially sensitive operating data unless explicit public disclosure has been agreed.
Our principle
Proof should come from validation, not from borrowed credibility.
Our technology should be judged by a transparent test approach and by each customer’s ability to verify NanoEFX under their own operating conditions — not by a wall of past customer logos.
Method before result
The five vehicles ran their normal collection rounds throughout, out of the Waste Services depot at Nottuln in North Rhine-Westphalia — same vehicles, same drivers, same depot. Fuel and distance came from Waste Services’ own fleet management system rather than from any measurement we installed, and Waste Services verified the figures as the owner and operator of the vehicles.
The drivers were deliberately not told that the air filters had been treated. That matters more than it sounds: if a driver knows a fuel-saving product is being tested, driving style tends to change on its own. Keeping the drivers uninformed removes that bias from the result.
Only weeks with both distance and consumption data were included in the distance-weighted calculation, which is why the weighted figure (18.2%) sits slightly below the simple average of the five vehicles (19.6%). Weighting by distance means a vehicle that drove 4,000 km counts more than one that drove 800 km.
Waste Services additionally supplied the daily operational records for all five months — destination, hours, distance and load for every working day. That second dataset is the reason this page says more about the trial’s weaknesses than the fuel figures alone could. It confirms the distance the fuel analysis is built on (21,573 km in the operational records against 21,541 km in the fuel workbook, 0.1% apart), it establishes that the routes barely changed, and it uncovered the load shift described below.
Route continuity was checked destination by destination. 83% of the journeys in the trial window went to destinations that also appear in the March–May records — Bochum, Hamm, Bielefeld, Lüdenscheid, Emsland, Paderborn and the rest of the regular round. For a before-and-after comparison that matters: the objection "they were driving different routes" can be answered with data rather than assurance.
The limits of this trial
We publish these next to the result rather than in a footnote. If a limitation would change how you read the number, you should read it at the same time as the number.
Known limitations
- There is no control group. Untreated sister vehicles running the same routes over the same weeks would separate the treatment effect from the season and from the load shift in one step — this is the single biggest improvement available for this trial, and we are asking Waste Services whether that data can be pulled retrospectively.
- The vehicles ran lighter during the trial. Average capacity utilisation across the fleet fell from 0.87 to 0.78 — down 10.5% — and distance per operating day fell 8.4%. A lighter refuse truck burns less fuel per 100 km regardless of any treatment, so some unknown part of the 18.2% is a load effect rather than a product effect. This is the single most important caveat on this page, and we would not know about it if Waste Services had sent only the fuel figures.
- Against that: the load shift does not track the result. The vehicle whose load fell furthest (Vehicle 02, −19.9%) recorded the smallest saving (−7.9%), the one with the largest saving sits mid-range, and the correlation across the five vehicles is +0.15 — effectively none. If the saving were mostly a load artefact, that correlation should be strongly negative. With five vehicles this is an argument, not a proof.
- The baseline is seasonal. March–May is compared with a 15 June to 24 July window, and summer diesel, fewer cold starts, no cabin heating and drier roads all reduce consumption on their own. Some part of the 18.2% is very likely seasonal rather than product effect.
- The two datasets do not agree week by week. Their totals match to within 0.1%, but individual weeks diverge sharply at three of the five vehicles — Vehicle 04 shows 273 km in the operational records against 823 km in the fuel workbook for week 2, Vehicle 03 shows 1,185 against 878 for week 4. The week definitions in the fuel workbook are also inconsistent (week 1 runs Monday to Friday, week 2 Saturday to Friday, and 27–28 June falls out entirely). We have asked Waste Services to reconcile them.
- The operational records are incomplete in places: the June sheet carries no destination column at all, so route continuity could only be checked for July, and 24 days in July have no distance recorded.
- Weather, traffic and vehicle maintenance status were not systematically controlled during this proof-of-concept phase.
- One vehicle (Vehicle 01) was out of service for repairs during week 6 and is excluded from that week’s calculation.
- The spread between vehicles is wide — from 7.9% to 33.8%. Route changes do not explain it: Vehicle 03, the −33.8% vehicle, has the highest route continuity of all five at 90%. It remains an outlier to be explained rather than a headline.
- This is proof-of-concept data. The trial report itself states that it should be treated as a basis for further controlled validation, not as certified documentation.
Reading this evidence in context
For a municipal waste operator, refuse collection is a high-consumption, low-speed, stop-start duty cycle — the kind where combustion efficiency has the most room to matter and where fuel is a dominant, controllable cost line.
What this trial supports is a clear, consistent direction: all five vehicles came in below their own baseline, on routes that demonstrably did not change, with drivers who did not know. What it does not support is a precise number. Two effects push in our favour and are not quantified — the season and the lighter loads — and neither can be separated out without a control group.
That is why the figure to take from this page is the direction and the method, not the 18.2%. An operator planning a budget should assume less than this trial shows, and then measure their own fleet.
The honest next step is the one the report itself recommends, and the operational records now make it easy to design: a controlled validation trial with untreated sister vehicles on the same rounds, and load recorded per day so it can be held constant in the analysis rather than discovered afterwards.
Questions operators ask about this trial
Is the 18.2% a measured or a calculated figure?
Why were the drivers not told about the treatment?
Why does the fleet figure differ from the average of the five vehicles?
The trucks ran lighter during the trial. Does that not explain the whole saving?
How do you know the routes did not change?
Can we see the underlying data?
Does this prove NanoEFX saves 18% on any fleet?
Provenance
- Operator
- [operator address redacted] — all journeys start and end here
- Data owner
- Waste Services (own fleet management system and operational records), figures verified by the operator
- Documents
- NanoEFX Proof of Concept Report, Waste Services Germany trial (confidential); weekly consumption dataset, weeks 1–8; daily operational records for March to July 2026 (destination, hours, distance, load)
- Photographs
- Taken on site at the Nottuln depot by ECO EFX Solutions GmbH, filed against each vehicle in the trial record — our own images, published with the operator’s agreement
- Baseline period
- 1 March to 31 May 2026
- Trial window
- 15 June to 24 July 2026 — weeks 7 and 8 not yet reported
- Recalculation
- Load, distance and route continuity recomputed from the operational records; monthly total and average rows excluded; distance cross-checked against the fuel workbook (0.1% apart)
- Open items
- Week-by-week distance discrepancy between the two datasets; whether the drop in load has an operational explanation; destination column missing for June
- Status
- Trial ongoing — figures on this page cover the six evaluated weeks
- Last checked
- 15 August 2026
The only baseline that matters is yours
Every trial on this site was run on someone else’s vehicles, duty cycle and baseline. A NanoEFX pilot measures yours — and we will help you design it with a control group so the result stands up.
