injector cleaner
Skip itBrand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Price range
Good£2.80–£40.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.9%search→purchase rate — share of searches ending in a sale
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Avg price
Okay£10.97avg listing price — sweet spot $15–$100
Market size
Okay£106K£106K/yr · 165K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad4,949avg incumbent reviews — the moat a new listing must climb
Growth
Bad-17.0%90-day search growth — must beat 0% to launch
Brand share
Bad95%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
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 moly49K/yr
- injector cleaner41K/yr
- liquid moly21K/yr
- fuel injector cleaner13K/yr
- liquid molly5K/yr
- liqui moly super diesel additive4K/yr
- liqui moly diesel injector cleaner7K/yr
- injector cleaner petrol5K/yr
- liqui moly diesel5K/yr
- liqui molly3K/yr
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.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803
Liqui Moly£6.434.7★3,011 rev
LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
Liqui Moly£4.794.7★2,737 rev
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£16.794.7★34,936 rev
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£17.244.6★116 rev
LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427
Liqui Moly£8.444.7★14,367 rev
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£22.622 rev
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£17.24116 rev
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£14.87222 rev
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£4.881,524 rev
LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803
Liqui Moly£6.433,011 rev
Trending
90-day click momentumEVSTUL 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£22.624.5★
Carlube QID300 Diesel Injector Cleaner 300ml regular
Carlube£3.174.4★
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£14.874.6★
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£2.804.6★
LIQUI MOLY Diesel Particulate Filter Protector | 250 ml | Diesel additive | SKU: 7180 Gray
Liqui Moly£6.384.6★
What buyers say about injector cleaner
What buyers praise and complain about, mined from review topics.What buyers love
“Best on the market”
“Works well”
“Worth the money”
“As advertised”
“Used this for years keeps things clean”
“Good product for car fuel”
“Easy to use”
“Reduces oil consumption”
“Quieter”
“its durable”
What buyers complain about
“Didn't work”
“Quite expensive”
“It found a faulty injector”
“it doesn't smell like previous injector cleaners I've bought in the past”
“possibly oil pump drive chain were making noise”
“didn't last”
“Fuel economy has risen a bit too”
“Turned off fault light on Seat Ibiza 2016”
“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”
“Anything that reduces friction has to be good”
Top return reasons
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.