Injector Cleaner
brand-locked demand (top 5 brands take 95% of clicks) — Injector Cleaner doesn't clear our bar today.
Flapen Score
Ranks 684 of 811 Automotive niches · −10 vs the category median of 49
Is Injector Cleaner profitable on Amazon?
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.
Injector Cleaner: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -17.0% over the last 90 days and 5.9% of searches end in a purchase.
£106K
revenue / yr
Who owns the niche?
The top 5 brands hold 95% of demand, so 5% of the market is open.
5%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.
0/100
page quality · 16 products
Top Injector Cleaner products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803
- Price
- £6.43
- Rating
- 4.7/5
- Reviews
- 3,011
- Age
- 11y ago

LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
- Price
- £4.79
- Rating
- 4.7/5
- Reviews
- 2,737
- Age
- 11y ago

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
- Price
- £16.79
- Rating
- 4.7/5
- Reviews
- 34,936
- Age
- 16y ago

WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT)
- Price
- £17.24
- Rating
- 4.6/5
- Reviews
- 116
- Age
- 6y ago

LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427
- Price
- £8.44
- Rating
- 4.7/5
- Reviews
- 14,367
- Age
- 14y ago
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
- Price
- £22.62
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 4mo ago

Carlube QID300 Diesel Injector Cleaner 300ml regular
- Price
- £3.17
- Rating
- 4.4/5
- Reviews
- 221
- Age
- 13y ago

WOL Diesel Additive Injector Cleaner Liqui Moly Diesel Engine Purge 500ml - Fuel System Cleaner DPF Diesel Cleaner 1811 Smooth Engine Running (2 UNIT)
- Price
- £14.87
- Rating
- 4.6/5
- Reviews
- 222
- Age
- 6y ago

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
- Price
- £2.80
- Rating
- 4.6/5
- Reviews
- 6,175
- Age
- 17y ago

LIQUI MOLY Diesel Particulate Filter Protector | 250 ml | Diesel additive | SKU: 7180 Gray
- Price
- £6.38
- Rating
- 4.6/5
- Reviews
- 1,388
- Age
- 11y ago
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
- Price
- £22.62
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 4mo ago

WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT)
- Price
- £17.24
- Rating
- 4.6/5
- Reviews
- 116
- Age
- 6y ago

WOL Diesel Additive Injector Cleaner Liqui Moly Diesel Engine Purge 500ml - Fuel System Cleaner DPF Diesel Cleaner 1811 Smooth Engine Running (2 UNIT)
- Price
- £14.87
- Rating
- 4.6/5
- Reviews
- 222
- Age
- 6y ago

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
- Price
- £4.88
- Rating
- 4.6/5
- Reviews
- 1,524
- Age
- 8y ago

LIQUI MOLY Injection Cleaner | 300 ml | Petroladititive | SKU: 1803
- Price
- £6.43
- Rating
- 4.7/5
- Reviews
- 3,011
- Age
- 11y ago
Competition: brands, sellers & click 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 shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 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
What reviews say buyers love and hate about Injector Cleaner
What buyers mention most, as a share of all reviews.
What buyers love
89% of reviews“Best on the market”
“Works well”
“Worth the money”
“As advertised”
“Used this for years keeps things clean”
What buyers complain about
53% of reviews“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”
Injector Cleaner return rate & reasons
Why buyers send it back, as a share of all return requests.
0.4%
Return rate
11%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Injector Cleaner questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









