---
title: "Injector Cleaner — £106K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/automotive/injector-cleaner"
last_updated: "2026-08-09T07:19:29.943Z"
locale: en
meta:
description: "Niche score 39/100 · £106K/yr market · 165K searches/yr · £10.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · £106K/yr market · 165K searches/yr · £10.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Injector Cleaner — £106K/yr Amazon UK Niche (2026) - Flapen"
---
# **injector cleaner**
**Skip it**
Brand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Market size 26Growth 17Conversion 66Competition 43Returns 98Price range 68Avg price 41Brand share 11Review moat 24Quality gap 24
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Price range**
**Good****£2.80–£40.62**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.9%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****£10.97**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****£106K**
£106K/yr · 165K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,949**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-17.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, injector cleaner is a £106K/yr Amazon United Kingdom market (165K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 39/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **injector cleaner market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **£88K–£110K**
- units × avg price
- **Conversion rate**
- **5.9%**
- **Avg BSR**
- **#37**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **76 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**70**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 100%
**Open market**
**1%**
- Liqui Moly70% - WOL WORLD OF LUBRICANT11% - STP6% - Redex5% - Wynn's4% - Carlube3% - Open — no brand owns it (1 brand, 1%)
## **Top injector cleaner search terms**
- **liqui moly**49K/yr-13.2%2.5% conv. - **injector cleaner**41K/yr-11.1%4.3% conv. - **liquid moly**21K/yr+1.3%4.2% conv. - **fuel injector cleaner**13K/yr-15.3%3.9% conv. - **liquid molly**5K/yr+8.0%3.7% conv. - **liqui moly super diesel additive**4K/yr-6.1%4.9% conv. - **liqui moly diesel injector cleaner**7K/yr-48.7%3.3% conv. - **injector cleaner petrol**5K/yr-20.4%8.0% conv. - **liqui moly diesel**5K/yr-10.2%3.1% conv. - **liqui molly**3K/yr-10.6%2.4% conv. [**All search terms **](https://flapen.com/research/uk/automotive/injector-cleaner/search-terms)
## **Top injector cleaner 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%10%£11K20%£21K30%£32K40%£43K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803**Liqui Moly**£6.43**4.7★3,011 rev](https://www.amazon.co.uk/dp/B0096Y6OII) [2**LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591**Liqui Moly**£4.79**4.7★2,737 rev](https://www.amazon.co.uk/dp/B0096Y6SX4) [3**LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1**Liqui Moly**£16.79**4.7★34,936 rev](https://www.amazon.co.uk/dp/B001CZODH8) [4**WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT)**WOL WORLD OF LUBRICANT**£17.24**4.6★116 rev](https://www.amazon.co.uk/dp/B088LST6VZ) [5**LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427**Liqui Moly**£8.44**4.7★14,367 rev](https://www.amazon.co.uk/dp/B001CZSG94)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**EVSTUL Fuel Injector Tester and Cleaner Kit 5V 12V Output Power Injector Cleaning Kit with 6 Adapters 8 Pulse Modes 2 Petrol Injectors Test Simultaneously**EVSTUL**£22.62**2 rev4mo ago](https://www.amazon.co.uk/dp/B0GSY2VSBL) [**WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT)**WOL WORLD OF LUBRICANT**£17.24**116 rev6y ago](https://www.amazon.co.uk/dp/B088LST6VZ) [**WOL Diesel Additive Injector Cleaner Liqui Moly Diesel Engine Purge 500ml - Fuel System Cleaner DPF Diesel Cleaner 1811 Smooth Engine Running (2 UNIT)**WOL WORLD OF LUBRICANT**£14.87**222 rev6y ago](https://www.amazon.co.uk/dp/B088MCMKLX) [**STP Diesel High Milage Injector Cleaner 200 ml Cleans and Protects your Engine for 300 miles Enhances Fuel Economy Mechanical Car Cleaning Products Concentrated Cleaning Formula Made in the UK**STP**£4.88**1,524 rev8y ago](https://www.amazon.co.uk/dp/B075NHH5GN) [**LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803**Liqui Moly**£6.43**3,011 rev11y ago](https://www.amazon.co.uk/dp/B0096Y6OII)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**EVSTUL Fuel Injector Tester and Cleaner Kit 5V 12V Output Power Injector Cleaning Kit with 6 Adapters 8 Pulse Modes 2 Petrol Injectors Test Simultaneously**EVSTUL**£22.62**4.5★**▲ 336%**](https://www.amazon.co.uk/dp/B0GSY2VSBL) [**Carlube QID300 Diesel Injector Cleaner 300ml regular**Carlube**£3.17**4.4★**▲ 51%**](https://www.amazon.co.uk/dp/B009LHA968) [**WOL Diesel Additive Injector Cleaner Liqui Moly Diesel Engine Purge 500ml - Fuel System Cleaner DPF Diesel Cleaner 1811 Smooth Engine Running (2 UNIT)**WOL WORLD OF LUBRICANT**£14.87**4.6★**▲ 27%**](https://www.amazon.co.uk/dp/B088MCMKLX) [**Redex Petrol System Cleaner 250ml Petrol Injector Cleaner To Remove Harmful Deposits Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines Suitable For Hybrids**Redex**£2.80**4.6★**▲ 26%**](https://www.amazon.co.uk/dp/B001QLX0UO) [**LIQUI MOLY Diesel Particulate Filter Protector | 250 ml | Diesel additive | SKU: 7180 Gray**Liqui Moly**£6.38**4.6★**▲ 18%**](https://www.amazon.co.uk/dp/B00VP4WZ2Q)
**~~View all trending →~~**
## **What buyers say about injector cleaner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Best on the market”*
**Efficiency**13%
*“Works well”*
**Value For Money**13%
*“Worth the money”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Ease Of Cleaning**8%
*“Used this for years keeps things clean”*
**Fuel Efficiency**7%
*“Good product for car fuel”*
**Ease Of Use**4%
*“Easy to use”*
**Lubrication**4%
*“Reduces oil consumption”*
**Noise Level**4%
*“Quieter”*
**Durability**2%
*“its durable”*
### **What buyers complain about **
**Functionality-Overall**10%
*“Didn't work”*
**Value For Money**8%
*“Quite expensive”*
**Lubrication**6%
*“It found a faulty injector”*
**Smell**5%
*“it doesn't smell like previous injector cleaners I've bought in the past”*
**Noise Level**5%
*“possibly oil pump drive chain were making noise”*
**Durability**5%
*“didn't last”*
**Fuel Efficiency**3%
*“Fuel economy has risen a bit too”*
**Defective Material/Parts**3%
*“Turned off fault light on Seat Ibiza 2016”*
**Sensor**3%
*“Had a po238 code on my hdi picasso after heavy acceleration mechanic said it was 2 sensors changed them still the same then he said it was the turbo vains sticking tried 2 bottles of turbo vain cleaner off here still the same lad in work said his was a partially blocked dpf tried this stuff light went off straight away”*
**Friction**3%
*“Anything that reduces friction has to be good”*
### **Top return reasons **
**Compatibility-Overall**49%
**Leak-Proof**13%
**Advertised Vs Actual Product**7%
**Functionality-Overall**5%
**Wet Cleaning**4%
**Defective Material/Parts**4%
**Value For Money**3%
**Size-Overall**3%
**Product Condition**1%
**Fuel Efficiency**1%
## **Common questions**
- **Is injector cleaner profitable to sell on Amazon United Kingdom?**
- The niche generates £106K/yr across 16 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -17.0%. Flapen's verdict: Skip it (39/100).
- **How competitive is the injector cleaner niche?**
- 7 brands and 70 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in injector cleaner?**
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Lubrication. The return rate is 0.4%.
- **What does it cost to enter the injector cleaner niche?**
- Listings span £2.80–£40.62; the average listing price is £10.97 (sweet spot $15–$100). The average incumbent carries 4,949 reviews — the moat a new listing must climb.
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