Engine Care & Maintenance

Cataclean is scientifically proven to reduce carbon dioxide emissions, helping drivers pass MOT emissions tests with ease and preventing issues with catalytic converters by removing resin and gum build-up in both the fuel and exhaust systems.

• Reduces harmful emissions by up to 60%.
• Helps avoid MOT emissions failures.
• Restores fuel efficiency (MPG).
• Enhances overall engine performance.
• Reduces long-term maintenance expenses.
• Contributes to cleaner air and lower pollution.
• Patented, high-quality formula.
• Comes with a money-back guarantee if your MOT fails.

It’s recommended to use a fuel system cleaner every 3,000 to 5,000 miles as a preventative measure. However, immediate use is advised if you notice any of the following:

• Poor fuel efficiency
• ‘Rough idling’ (engine running unevenly)
• Reduced engine performance or throttle response
• Engine sputtering
• Higher emissions

Cataclean fuel system cleaners are suitable for both petrol and diesel vehicles, including hybrid engines. Diesel engines particularly benefit, as DPFs (Diesel Particulate Filters) can become clogged with particulates. Cataclean helps maintain optimal performance and prevent blockages.

Engines naturally accumulate carbon deposits over time, affecting fuel efficiency and increasing emissions. Even small deposits on fuel injectors, intake valves, and combustion chambers can reduce performance.

Our products are formulated to clean, lubricate, and protect your engine and fuel system, preventing deposit build-up — especially effective when combined with an oil change or regular servicing.

Fuel System Cleaner

Our fuel and exhaust system cleaners restore fuel delivery and reduce exhaust emissions by up to 60%. Available in petrol and diesel formulas, the cleaner is added directly to the fuel tank to eliminate deposits in the combustion chamber and fuel injectors, restoring performance and MPG.

Fuel system cleaners can be purchased online alongside tyre fitting, MOTs, or service bookings.

Engine Flush

Engine flush treatments supplement your oil to replenish critical additives, reduce wear, and enhance engine power and performance. Suitable for petrol and diesel engines, one treatment can remove sludge, dirt, and varnish while preventing contamination of new oil. The treatment is applied during your scheduled service.

Treatment products can be added to your order at checkout. Fuel system cleaners are available when booking a service, MOT, or tyre fitting. Engine flush treatments are available during a service appointment. Alternatively, visit ESP Servicing to inquire about these products.

It’s possible, but Cataclean recommends adding it to a quarter tank of fuel for best results.

Yes. Regular use reduces emissions, improves engine performance, and increases fuel economy.

After adding Cataclean to a quarter tank of fuel, drive for around 15 minutes. Full effects may take a few hundred miles to be noticeable.

Yes. Cataclean cleans the fuel tank, fuel lines, injectors, combustion chamber, intake valves, oxygen sensors, EGR valves, catalytic converter, and DPFs/PPFs.

Dirty fuel, contaminated with debris, dust, or water, can cause:

• Engine performance problems
• Check Engine light activation
• Reduced fuel efficiency
• Loss of power
• Rough idle
• Engine sputtering
• Misfires

If you notice any of these, consult ESP Servicing — a fuel system clean may be required.

Dosage depends on fuel tank size. Cataclean recommends: add one 500ml treatment to a quarter tank (≈15 Litres), drive 15–20 minutes, then refuel as needed.