Heavy diesel: big tanks, bigger savings
Long-haul tractors, construction trucks and mining equipment burn tens of thousands of litres a year per unit. The D50/D51 series is built for their tanks — and for the duty cycles where a few percent is real money.
Long-haul: tested with SAE J1321
The protocol fleets trust
SAE J1321 is the standard two-truck fuel test in trucking. MGA Research ran it with our device installed: +5.93% fuel economy (+2.4 MPG).
Class 8/9 lab data
Heavy-duty chassis tests at CEE on Kenworth Class 8 and Class 9 tractors measured consumption and emission improvements on standardized cycles.
Highway duty suits it
Long, steady mileage turns a stable percentage into a predictable annual saving per tractor — easy to verify against your own fuel cards.
Construction: idle-heavy cycles, dirty burns
Idling and load spikes
Construction trucks idle and lug under load — the incomplete-combustion regime where carbon builds up and smoke shows. That is exactly the regime the device improves.
Smoke checks matter
Site access and municipal contracts increasingly require passing smoke tests; lower opacity keeps older equipment earning.
Installed at a fuel stop
Units go into the tanks during normal refuelling — no workshop slot, no downtime.
Mining: fuel is the pit’s biggest consumable
Extreme litres per unit
Haul trucks and loaders burn more fuel than anything on the road, so even conservative percentages are significant amounts per machine per year.
Built for remote sites
Passive device — no maintenance, no consumables, no connectivity requirement. Nothing to service in the field for 10 years.
Emission pressure underground
Ventilation-limited operations benefit directly from lower diesel smoke and carbon monoxide.
Measured on heavy diesel
SAE J1321 protocol, USA
+5.93% fuel economy (+2.4 MPG) on the standard two-truck fleet protocol.
Class 8/9 tractors, USA
Kenworth heavy tractors measured for consumption and emissions on standardized cycles.
Government testing, Australia
Australian federal transport department executive summary of device testing.
Full reports and PDF downloads: Proof & Results.
Run it on two trucks against two controls
That is the J1321 idea, and it works at site and pit scale too. We provide the measurement template — you keep the data and decide on your own numbers.