---
title: "Cataclean Petrol — £218K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/automotive/cataclean-petrol"
last_updated: "2026-08-07T15:48:01.873Z"
locale: en
meta:
description: "Niche score 46/100 · £218K/yr market · 102K searches/yr · £17.39 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £218K/yr market · 102K searches/yr · £17.39 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cataclean Petrol — £218K/yr Amazon UK Niche (2026) - Flapen"
---
# **cataclean petrol**
**Skip it**
A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.
Market size 42Growth 29Conversion 95Competition 10Returns 99Price range 71Avg price 81Brand share 14Review moat 51Quality gap 25
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****£17.39**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£2.80–£45.42**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,476.67**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£218K**
£218K/yr · 102K searches
**Growth**
**Okay****+3.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****88%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, cataclean petrol is a £218K/yr Amazon United Kingdom market (102K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 46/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cataclean petrol market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **£174K–£217K**
- units × avg price
- **Conversion rate**
- **12.3%**
- **Avg BSR**
- **#91**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **67%**
- **Out of stock**
- **6.7%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **186 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **—flat
**Sellers**
**37**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**3%**
- Cataclean67% - Wynn's13% - STP8% - Carlube4% - Redex3% - DNTHYRIN3% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +3.1% search growth over the last 90 days.
3K2KSpike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/automotive/cataclean-petrol/trend)
## **Top cataclean petrol search terms**
- **cataclean diesel**40K/yr+10.8%4.5% conv. - **cataclean petrol**39K/yr-1.6%0.9% conv. - **cataclean**20K/yr-3.9%1.3% conv. - **cataclean diesel 8 in 1**3K/yr+19.3%2.5% conv. [**All search terms **](https://flapen.com/research/uk/automotive/cataclean-petrol/search-terms)
## **Top cataclean petrol products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%£33K30%£66K45%£98K60%£131K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml**Cataclean**£23.53**4.7★566 rev](https://www.amazon.co.uk/dp/B077B5D5MM) [2**Wynns Catalytic Converter & Lambda Sensor Cleaner - Optimises Efficiency Reduces Emissions & Restores Engine Performance - Ideal for Petrol & Hybrid Engines - 325ml**Wynn's**£9.17**4.4★783 rev](https://www.amazon.co.uk/dp/B01M04LOK3) [3**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml**Cataclean**£24.00**4.5★145 rev](https://www.amazon.co.uk/dp/B09ZJ3DZ9V) [4**STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml Restores Power and Protects your Engine Enhances Fuel Economy Mechanical Car Cleaning Products Concentrated Cleaning Formula Made in the UK**STP**£9.68**4.6★3,775 rev](https://www.amazon.co.uk/dp/B00NC1ER3U) [5**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 4 x 500ml**Cataclean**£45.42**4.7★17 rev](https://www.amazon.co.uk/dp/B09ZJ3WK2X)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Catalytic Convertor Cleaner Petrol Catalytic Converter Cleaner - Fuel System Treatment for Diesel & Petrol Engines Emission Maintenance and Injector**DNTHYRIN**£8.12**5 rev4mo ago](https://www.amazon.co.uk/dp/B0GT47ZN3P) [**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml**Cataclean**£24.00**145 rev4y ago](https://www.amazon.co.uk/dp/B09ZJ3DZ9V) [**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 4 x 500ml**Cataclean**£45.42**17 rev4y ago](https://www.amazon.co.uk/dp/B09ZJ3WK2X) [**Carlube Catalytic Converter Exhaust DPF Cleaner for Petrol and Diesel 500ml**Carlube**£12.86**36 rev4y ago](https://www.amazon.co.uk/dp/B09BK4SQZ8) [**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml**Cataclean**£23.53**566 rev7y ago](https://www.amazon.co.uk/dp/B077B5D5MM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Catalytic Convertor Cleaner Petrol Catalytic Converter Cleaner - Fuel System Treatment for Diesel & Petrol Engines Emission Maintenance and Injector**DNTHYRIN**£8.12**5.0★**▲ 249%**](https://www.amazon.co.uk/dp/B0GT47ZN3P) [**Carlube Catalytic Converter Exhaust DPF Cleaner for Petrol and Diesel 500ml**Carlube**£12.86**4.3★**▲ 160%**](https://www.amazon.co.uk/dp/B09BK4SQZ8) [**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 4 x 500ml**Cataclean**£45.42**4.7★**▲ 63%**](https://www.amazon.co.uk/dp/B09ZJ3WK2X) [**Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml**Cataclean**£23.53**4.7★**— 3%**](https://www.amazon.co.uk/dp/B077B5D5MM) [**Archoil AR6900-D Max Advanced Diesel Additive Concentrate 1L Treats 1 000L of Fuel Diesel Fuel Injector Cleaner DPF Filter EGR Valve Turbo Cleaner Super Diesel Converter. (1Litre)**Archoil**£20.93**4.6★**— 0%**](https://www.amazon.co.uk/dp/B01IDDF4JM)
**~~View all trending →~~**
## **What buyers say about cataclean petrol**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Best on the market”*
**Efficiency**17%
*“Works well”*
**Value For Money**15%
*“Excellent price”*
**Fuel Efficiency**14%
*“Improves fuel efficiency”*
**Advertised Vs Actual Product**13%
*“As advertised”*
**Ease Of Cleaning**9%
*“Gave the car a good clean out”*
**Ease Of Use**2%
*“Easy to use”*
**Motor Power**2%
*“My engine was running quite right, so I used Redex and also V-Power and it's running fine now”*
**Lubrication**2%
*“Perfect diesel additive”*
**Filtration**1%
*“the filter was clear”*
### **What buyers complain about **
**Compatibility-Overall**15%
*“Didnt work on my Peugeot 2008”*
**Fuel Efficiency**13%
*“The car still failed on emissions”*
**Sensor**10%
*“it put out the lamba sensor”*
**Value For Money**5%
*“So you may think pricey”*
**Defective Material/Parts**5%
*“Turned off fault light on Seat Ibiza 2016”*
**Filtration**5%
*“I have had consistent problems over the past three years with a clogged filter on my diesel Alfa Guilietta 2.0 which has ended up with the engine shutting down to its restricted speed mode”*
**Advertised Vs Actual Product**5%
*“Not so good as advertised”*
**Spray/Flow**5%
*“as it won't get the bottle nozzle into the fuelling line -”*
**Leak-Proof**4%
*“Definitely use gloves because it's 100% gonna spill out of that shoddy cap”*
**Design-Overall**4%
*“Badly designed bottle”*
### **Top return reasons **
**Leak-Proof**33%
**Compatibility-Overall**29%
**Functionality-Overall**13%
**Advertised Vs Actual Product**8%
**Product Condition**6%
**Value For Money**4%
**Instructions/User Manual/Troubleshooting**4%
**Defective Material/Parts**2%
**Stain Resistance**1%
## **Common questions**
- **Is cataclean petrol profitable to sell on Amazon United Kingdom?**
- The niche generates £218K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +3.1%. Flapen's verdict: Skip it (46/100).
- **How competitive is the cataclean petrol niche?**
- 7 brands and 37 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in cataclean petrol?**
- Top complaints mined from reviews: Compatibility-Overall, Fuel Efficiency, Sensor. The return rate is 0.1%.
- **When does demand for cataclean petrol peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the cataclean petrol niche?**
- Listings span £2.80–£45.42; the average listing price is £17.39 (sweet spot $15–$100). The average incumbent carries 1,477 reviews — the moat a new listing must climb.
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