A truck on the road at dusk

Less fuel.Lower emissions.Your tanks, monitored.

The Comet catalyst fits on the fuel line of your trucks, equipment and generators and reduces their consumption. Fuel level sensors and GPS tracking show you the route, the stops and any unexplained fuel loss.

GPS trackingTruck 14 on route
Comet catalystOn the fuel line
Tank sensorFuel level 82%

Fuel is one of your largest operating costs, and each liter is hard to trace.

Fuel goes missing with no record of when or how.

A client or an authority asks for your emissions figures, and you have no documented data to give.

Three components. One system.

One component reduces fuel use. Two monitor it continuously.

Comet CFSS catalyst units
A Comet catalyst fitted on a truck fuel line

The Comet catalyst

Fits on the fuel line ahead of the engine or burner. It needs no power, has no moving parts, requires no change to the engine and adds nothing to the fuel.

For diesel, heavy fuel oil and natural gas.

The fuel level sensor

Measures the fuel level continuously and sends an alert on any sudden or unexplained drop.

The GPS tracker

Sends each vehicle's location, route and stop times, and alerts you when it leaves its route or idles for long.

Lower emissions with every liter saved.

On two trucks in Dubai, TASJEEL, an independent testing body, measured exhaust smoke opacity 67% to 76% lower after Comet was fitted.

Refuse truck75.7%lower opacity
Before
After
Water tanker67.4%lower opacity
Before
After

TASJEEL measurements on two Imdaad trucks, 14 December 2021 and 18 January 2022. Opacity measures how dense the visible exhaust smoke is. It is not a measure of the mass of emissions.

Every 1,000 liters of diesel you save cuts your emissions by 2.68 tonnes of CO2.

Exhaust opacity
Illustration based on the refuse truck test
100

Every truck, as it moves.

Every vehicle on the map with its location, speed and approved route.

An alert when a truck leaves its route.

You get the time and the place, with the approved route on the map.

An alert for long idling.

You get the place and the duration. An idling engine burns fuel and does no work.

A report for every trip at the end of the day.

The actual route, stops, delays and fuel use, in one report.

Truck 14
Speed0
Tank82%
Time10:15
Left the approved route10:42
Idled 47 minutes, engine on11:38
Arrived 58 minutes late. Trip report ready.12:06
Demo
Trailers parked at night in fog

2:14 a.m.190 liters missing from the tank.

No one is on site. The tank sensor records the drop and the platform sends you the alert.

Fuel level over 24 hoursExample
Sudden drop in truck 09's tank190 liters in 6 minutes. 2:14

Your whole fleet on one screen.

Every truck with its place, tank level and status. Whatever needs your attention comes first.

An aerial view of a truck yard
16 parked 1 on the road !1 alert Demo. Hover over any truck.

Every liter saved lowers your operating cost.

Adjust the figures to match your fleet.

50
60,000

A worked example, not a commitment. A 7% saving, diesel at SAR 1.79 per liter (Aramco, January 2026), and 2.68 kg of CO2 per liter. The five-year figure assumes the same use, diesel price and saving rate every year.

A diesel sign on fuel pipes
Annual saving (SAR)375,900
Saving over 5 years (SAR)1,879,500
210,000
fewer litersof diesel a year
563
fewer tonnesof CO2 a year
627
SAR savedper unit a month

Documented results.

11.3%
Imdaad, Dubai. Refuse truck.
Measured over one month.
8.75%
Veliki Krivelj mine. Mining truck.
Compared with a similar truck without the catalyst.
5.2%
Qatar Steel. Reheating furnace.
Measured over five months.

Further results are available on request.

Fitted on working equipment.

The Comet catalyst during and after installation. Photos courtesy of Comet.

Comet CFSS catalyst units

Comet CFSS catalyst units

Catalyst on a truck fuel line

Catalyst on a truck fuel line

Catalyst in an engine bay

Catalyst in an engine bay

Fitting on a truck

Fitting on a truck

On a heavy fuel oil line

On a heavy fuel oil line

Mining truck

Mining truck

Who is it for?

Three steps. Measured, not estimated.

We measure

We measure your equipment's fuel use before fitting.

We fit

We fit the catalyst on the fuel line.

We compare

We measure again and report the difference to you.

We agree the minimum saving with you in writing before we start.

Tell us about your fleet.

Answer four questions and we will send you a measurement plan for your fleet.

What fuel do you use?
Do you need fuel monitoring and vehicle tracking?
Do you have environmental requirements or emissions reporting obligations?

We use these details only to reply to your request.