A Clean Fuel System for Higher Performance for Off-Road Rides!

Use Your Off-Roader’s Tank for Fuel System Maintenance

MATHY additives for more traction and power at the wheel

MATHY Fuel Additives are advanced and proven additives for use in off-road engines. They optimize the combustion process and guarantee trouble-free off-road operation.

With regular use, the full performance of the fuel system is gently restored and sustainably maintained. The cleaning effect of MATHY fuel additives has been tested and certified by TÜV NORD and TÜV Thüringen. Fuel consumption is optimized and emissions are sustainably reduced.

Advantages at a glance

  • Cleans the entire fuel system
  • Improves the combustion process
  • Optimizes fuel consumption
  • Reduces polluting emissions
  • Increases operational reliability

Frequently asked questions

How can I use MATHY Fuel Additives?

Application of MATHY Fuel Additives is simple and does not require workshop visit. Right before refueling add MATHY Fuel Additives to the tank according to instructions. The cleaning effect starts in normal driving. Each fuel additive comes with detailed application instructions. For more questions do not hesitate to contact out technical hotline at +49 (0)5191 16004.

How can I increase the cetane number of diesel fuels?

By adding MATHY-D System Cleaner to the tank, the catane number is increased and the combustion process is improved.

Is there a cleaning additive for diesel particle filters?

Our newly developed diesel particle filter – MATHY-DPF – is simply added to the tank and works in normal driving. MATHY-DPF supports the vehicle’s own regeneration process and improves reduction of soot particles. A new formation of ash is significantly prevented.

My engine runs roughly. How can I solve this problem without a workshop visit?

Often times the problem of a rough engine run is caused by soiled injection nozzles or coked valves. If both components do not work properly anymore, too much fuel is injected and the engine starts to jolt. A cleaning of the fuel system can easily solve this problem. MATHY has the right solutions for diesel and petrol / gasoline vehicles in stock.

All FAQs

Our problem solvers for the fuel system

MATHY-BE Gasoline System Cleaner

MATHY-BE is a specially formulated fuel additive for all fuels in petrol / gasoline engines. The active component combination for ethanol, petrol and ethanol-petrol blends has a highly effective cleansing and maintenance effect. MATHY-BE prevents damage to the fuel-carrying components. Possible deposits which reduce the efficiency of the fuel system are dissolved and burnt residue-free.

from 16,95 €

= 67.80 € / l

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MATHY-D Diesel Fuel System Cleaner

MATHY–D cleans the diesel fuel system and improves operation reliability and economy of diesel engines. Suitable for all diesel engines (CDI and TDI) and diesel fuels, summer and winter quality. Suitable for all diesel oxidation catalysts and micro particle filters (DPF). It is also compatible with AdBlue.

from 16,95 €

= 67.80 € / l

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Diesel Particulate Filter Cleaner

MATHY-DPF lowers the combustion temperature of the soot in the particulate filter (DPF) and thus prevents skipping of the regeneration process in the DPF. The full absorption capacity of the diesel particle filter is restored, even at low operating temperatures.

Important note:
MATHY-DPF can no longer be used as a cleaning agent if:
- the diesel particulate filter (DPF) is (already) completely filled with ash, 
- the engine control lamp (yellow) is partially or permanently lit, 
- the engine is running in the emergency program. 
In these cases, the diesel particulate filter must be replaced or burnt free by a specialist workshop. We recommend using MATHY-DPF as a preventive measure!

from 19,95 €

= 66.50 € / l

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MATHY-AGR Diesel Cleaner for Exhaust Gas Recirculation

System cleaner for the exhaust gas recirculation

Regular use of MATHY-AGR in diesel fuel reduces a build-up of carbonaceous residues in the exhaust gas recirculation system and therefore repairs are minimized. Impurities are chemically degraded over the exhaust stream. Malfunctions, caused by a soiled exhaust gas recirculation valve can thus sustainably be prevented.

Important note: 
Fully coked exhaust gas recirculation valves (EGR) can no longer be cleaned with MATHY-AGR. Also, MATHY-AGR cannot take effect if the engine control lamp is already partially or permanently lit (yellow). In these cases, the EGR valve must be removed or cleaned manually. We recommend using MATHY-AGR as a preventive measure!

from 18,95 €

= 63.17 € / l

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Free shipping on orders over 80, - € within Germany and Austria

All Product Sets are free of shipping costs within Germany and Austria. Save more and receive 10 % discount on your order of €300 or more!