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Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars
Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars
Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars
Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars
Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars

Universal Catalytic Converter Cleaner for Petrol and Diesel and Hybrid Cars

Regular price £19.95 Sale price£4.95 Save 75%
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Engine Performance and Efficiency

This catalytic converter cleaner is designed to restore your vehicle's performance when the engine acts sluggish or smells weird. By pouring the 4oz bottle into your gas tank, the formula mixes with fuel to break up gunky carbon buildup, helping your engine achieve more power and quicker pickup while burning less gas. It supports smoother engine performance and more responsive driving when you hit the gas.

Emissions and Odor Control

The specialized formula cleans three-way catalytic converters without the need for disassembly or oil changes, effectively cutting down total hydrocarbon emissions. It also serves as an exhaust odor eliminator, neutralizing the unpleasant "rotten egg" smell from your tailpipe to make driving pleasant again. This helps restore purification efficiency and gets your exhaust system working better.

Easy Application and Protection

Application is effortless; simply dump the bottle into your gas tank before filling up, with no tools or mechanical work required. Beyond the converter, it scrubs harmful deposits from oil passages and cylinder walls, keeping engine internals cleaner. This preventative maintenance helps reduce the need for costly repairs and extends the life of your exhaust system.

Product Specifications

  • Volume: 4 fl oz
  • Application: Pour-in Fuel Additive
  • Compatibility: Gasoline Engines Only
  • Restrictions: Not for Hybrid Vehicles
  • Function: Cleans Carbon Buildup, Reduces Emissions
  • Storage: Cool, Dry Place

What’s Included

  • 1 x Catalytic Converter Cleaner (4oz)

Frequently Asked Questions

How do I use this?
Simply pour the entire 4oz bottle into your gas tank before filling up with fuel.

Do I need to change my oil after using this?
No, it delivers thorough cleaning without needing oil changes or mechanical work.

Can I use this in a hybrid car?
No, the specifications indicate it is compatible with gasoline engines only and not for hybrid vehicles.

Will this help with bad exhaust smells?
Yes, it is designed to neutralize unpleasant exhaust odors, specifically the "rotten egg" smell.

4.9 (20)
Verlie Huel

Really pleased with my purchase. Excellent quality, fast delivery and exactly as described. Couldn't be happier.

Flo Dibbert

Very well made and fantastic value for money. I'll certainly be ordering from Havenholt again.

Corbin Dietrich

Arrived quickly, well packaged and excellent quality. I'd happily recommend Havenholt to friends and family.

Chelsey Hoeger

Very impressed with both the product and the service. I'll definitely be shopping with Havenholt again.

Esta Torp

Lovely quality and beautifully finished. It fits perfectly in my home.

Dovie Fahey

A fantastic shopping experience from start to finish. Will certainly order again.

Nicklaus Gusikowski

Looks brilliant outdoors and feels durable. Exactly what we needed.

Gerald Baker

You can really see the attention to detail. Would happily recommend.

Raymond Baker

A quality product backed by excellent service. Couldn't ask for more.

Phillip Willis

Everything was exactly as advertised. No complaints at all.

Universal Catalytic Converter Fuel Treatment Cleaner Additive for Petrol Diesel Hybrid Cars 120ml Bottle