Swansea’s Premier TEC4 Service Centre

tec4 product range

Tec4 are so confident that their additives will improve your vehicles fuel consumption, that if you do not notice 15% better fuel economy, after we have treated your vehicle with one of their fuel saver kits THEY WILL REFUND YOU THE COST OF THE TREATMENT!

We are proud to be a Tec4 Service Centre

Petrol, Oil and Diesel are made from organic matter. When they combust or are left to naturally degrade, contamination is created. This contamination builds up on key components within the engine, resulting in a gradual loss of performance and fuel economy.

Tec4 Treatments remove harmful deposits and clean the internal combustion and lubrication system of your vehicles engine.

tec4 service kit boxes

tec4 cleaning in motionThis image explains where Tec4 will clean in your engine and fuel system. We advise EVERY oil change should have a Tec4 Oil System Cleaner and every service should have a Tec4 fuel system clean as part of your vehicles regular maintenance.

As a result of modern driving habits, contamination now affects 90% of cars on the road. Be it a reduction in fuel economy, an increase in harmful emissions or a blocked DPF (Diesel Particulate Filter) these problems can be fixed or prevented through the use of one of Tec4’s Service Kits.

We advise all our clients to have a Tec4 Fuel System Clean & Oil System Clean as part of their routine service. Not only will your vehicle run better, it will prolong its life and return better fuel economy!




Modern driving habits, coupled with extended oil drain periods and the sophistication of modern engines results in contamination build up on key components within the engine.

This contamination has a detrimental effect on the efficiency of the engine resulting in lost performance and increased fuel consumption.

Tec4 Oil System Cleaner is a highly concentrated technically advanced formulation designed to effectively remove this harmful contamination.

tec4 service oil cleaner 

Key Benefits:

  • Cleans internal engine components and provides anti wear protection
  • Neutralises harmful acid build up
  • Frees sticking valves, hydraulic valve lifters and piston rings
  • Stabilises cylinder compressions and restores lost power
  • Cleans oil ways
  • Keeps new oil cleaner for longer
  • Compatible with API and ACEA classification oils

The product is a combination of 4 technologies which:

  1. Adds lubricity
  2. Neutralises Acids
  3. Dissolves Contamination
  4. Holds contaminants in suspension

When the product is added to the old depleted oil it immediately neutralises acid which has built up in the crankcase and adds lubricity, enabling the detergents to safely dissolve contamination which has built up in the crank case, on piston rings, in the variable valve timing and in the hydraulic valve lifters.

These harmful contaminants are held in suspension and safely removed with the old oil. On completion of the cleaning process the reduced amount of depleted oil left in the engine is acid neutral ensuring the new oil stays cleaner for longer.


This is a video of a vehicle we had brought into our workshop which had not had an oil change for 5 years! The oil has been contaminated with soot and ash from the EGR (which had failed) then turned the oil into a syrup which failed to lubricate the turbocharger (which we needed to replace). The total cost of the repair for this vehicle was over £1,700! A simple oil change with a Tec4 Oil System Clean would have prevented the damage and they would of been able to have trouble free, economic motoring for years!

And the cost of the Oil System Clean??? Just £15 plus VAT