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Everyday driving & riding
Daily & weekend useCars, motorcycles, vans and outboards in regular use. A dose at fill-up keeps things clean between services.
Fuel conditioner concentrate by Fuel Set EU S.L.
Ageing fuel wears your engine.One capful fixes it.
Fuelnox is a concentrated conditioner that goes straight into the tank. It cleans the fuel system while you drive, so engines start easier, run smoother and waste less of every litre you pay for.
Gentle on seals, DPFs and catalytic converters. Compatible with manufacturer warranties when used as directed.
Four jobs
Cleans, burns, cuts smoke, absorbs water
Three fuels
Petrol, diesel and two-stroke
One capful
10 ml conditions 40 litres
250 ml to 210 L
One car, or a whole depot
Cars & light vehicles
Motorcycles & small engines
Vans & trucks
Boats & marine engines
Agricultural equipment
Generators
Construction machinery
Heating oil systems
The fix
A clear green liquid you simply pour in.
Fuelnox mixes into the fuel and gets to work on its own. No tools, no workshop, no shelf of additives. Pour it in, refuel, and drive.
Pour in · Refuel · Drive
What it does
One bottle. Four jobs in every tank.
Every dose does the same four things, and those four decide how much of the fuel you buy turns into miles.
It cleans the fuel
Dissolves gums, varnish, carbon and deposits out of injectors, carburettors, valves, lines and tanks, and keeps stored fuel fresh and stable.
It improves combustion
A clean system burns better on its own. The bigger gain is droplet size. The largest droplets of injected fuel never burn fully, so part of every tank leaves the engine unused. Fuelnox holds microscopic water in the fuel; in the heat of combustion it flashes to steam and bursts, breaking the fuel around it into a finer spray. More of the fuel burns, and the water leaves with the exhaust.
It reduces emissions
More complete combustion means less unburnt fuel, less soot and smoke, and a cleaner exhaust at the tailpipe.
It absorbs water
Water gets into every tank: from condensation, from the pump, from ethanol pulling it out of the air. Fuelnox stops it settling into a layer on the bottom, which is where corrosion starts and where filters pick up their sludge.
Tank by tank
What changes, and when.
Fuelnox is not a miracle in a bottle. It is a cleaning process that runs quietly while you drive, and it takes a few tanks. Here is roughly how it goes, next to a tank that is left alone.
TimelineWhat you would notice
UntreatedFuel left aloneAgeing from the pump
With FuelnoxConditioned fuelOne dose at refuel
The first tank
Deposits carry on building
Detergents get to work; little to feel yet
After two or three tanks
Idle and response keep drifting
Starts sharpen and the idle settles
Over a season
Economy quietly slips away
The miles per tank come back
Fuel left standing
Goes soft and drops sludge
Stays stable and still worth burning
At the next service
A sooty filter and tired injectors
Less to clean, less to replace
Fuelnox
Concentrated Fuel Conditioner
Fuelnox
Fuelnox is not a fuel and not a solvent. It is a non-hydrocarbon conditioner, built for what really collects in a fuel tank: deposits, stale petrol, diesel residue, unburnt carbon and the water that always finds its way in.
It is concentrated, so one capful looks after a full tank and a single small bottle covers tankful after tankful. Pick the size that fits the job, from a 250 ml bottle for one car up to a 210 L drum for a depot.
Works with what you already run: carburettors and common-rail, petrol, diesel and two-stroke, with or without a DPF.
22,99 € VAT incl. Coming soon
That's under 1 € per 40-litre tank at the maintenance dose.
Choose your size
Conditioned at the 1:4000 maintenance dose
1,000 litres
Conditions up to this much fuel
One 250 ml bottle, dosed at 10 ml per 40 litres.
Straight answers
What to expect from Fuelnox.
What it delivers
A fuel-system cleaner. It clears what fuel leaves behind and keeps a mechanically sound engine running at its best.
Real, honest power. A cleaner burn gives back the power and fuel economy that deposits slowly took away, so the engine runs the way it was built to.
A steady, lasting clean. A neglected fuel system comes good over a few tanks, and each dose keeps it there. The first shock dose starts the job; regular dosing sees it through.
What it is
One product does the whole job, from tank to tailpipe.
Works alongside the fuel and additives you already use.
Safe on metals, with no sulphur, phosphorus, nitrogen or metallic ingredients.
Results vary with engine, fuel and operating conditions. For petrol, diesel and two-stroke fuel systems. Not for aviation fuels.
Where it works
One bottle for every engine you run.
If it runs on petrol, diesel or two-stroke, Fuelnox keeps it cleaner. Pick the sector that matches how you use it.
Cars, Trucks & Motorcycles
From one daily driver to a whole fleet, a dose at fill-up. No new routine.
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Boats, Yachts & Ships
Built for condensation, ethanol and long lay-ups.
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Agricultural Machines
Ready for the season, after a long stand.
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Industrial & Generators
Standby power that starts on demand.
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Fishing Vessels
Clean fuel and clear filters, trip after trip.
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When to reach for it
Three good times to dose.
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Stored & seasonal
Storage & lay-upBoats over winter, standby generators, classic cars and seasonal machinery. Anything that will sit for months should be put away treated, not treated once it wakes up.
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Hard hours & heavy loads
Fleets & high-hours machinesTrucks, tractors, machinery and generators that work long hours in hard conditions. Cleaner running means fewer surprises and less downtime.
How to use it.
It comes down to two doses: a stronger first treatment, then a light top-up to keep things clean.
Dosing calculator
Shock dose & maintenance dose
Enter how much fuel you're treating and we'll work out the dose.
litres
You need
10ml
Maintenance dose for 40 litres of fuel.
Dose ratio1:4000
In capfuls (10 ml)1
Treatments from one 500 ml bottle50
- 1
Drain water, if present
Remove any visible free water from the fuel tank before treatment.
- 2
Add Fuelnox
Pour directly into the fuel tank before or during refuelling. Use 20 ml per 40 litres for the first treatment, 10 ml per 40 litres for ongoing maintenance.
- 3
Refuel
Top up as normal so the dose blends through the fuel. Keeping tanks fuller leaves less room for condensation, but Fuelnox works at any level.
- 4
Run the engine
Operate as normal so treated fuel circulates through the system.
- 5
Re-treat regularly
Add the maintenance dose at each refuel, or a double dose before long-term storage.
- 6
Store it simply
Keep the container sealed in a cool, dry place, away from heat, sparks and direct sunlight, and out of reach of children.
Made in Europe.
Built for the world's engines.
Formulated and produced in Spain by Fuel Set EU S.L., to EU chemical (CLP) standards. Built for road, marine, agriculture and industry.
Made in Spain
EU CLP compliant
Answers
Common questions.
Everything most people want to know before the first dose. Still unsure? We'll help you pick the right pack and dose.
Ask Our TeamFuelnox is a non-hydrocarbon conditioner that stays gentle on rubber seals, hoses, catalytic converters and DPFs. Compatible with manufacturer warranties when used as directed.
The first treatment is a shock dose of roughly 1:2000 (about 20 ml per 40 litres). After that, switch to a maintenance dose of about 1:4000 (roughly 10 ml per 40 litres) at each refuel. Overdosing will not harm the engine.
Petrol, diesel and two-stroke fuel systems, including cars, motorcycles, vans, trucks, boats, agricultural equipment, generators, industrial machines and heating-oil tanks. It is not intended for aviation fuels.
It absorbs the water that collects in tanks and carries it off with the fuel, helping prevent corrosion, blocked filters and other water-related problems. Drain any visible free water before dosing.
At the recommended 1:4000 maintenance dose, a single 500 ml bottle conditions up to 2,000 litres of fuel. Pack sizes run from 250 ml up to 210 L for fleets and depots.
Talk to Our Team
Put cleaner fuel
Put cleaner fuel
in your tank.
Every untreated tank leaves another layer of deposits behind. Tell us what you run, from one bike to a whole fleet, and we'll come back with the right pack, the right dose and exactly where Fuelnox fits into the maintenance you already do.
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