---
title: "Engine Degreaser — £102K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/automotive/engine-degreaser"
last_updated: "2026-08-09T09:48:56.675Z"
locale: en
meta:
description: "Niche score 44/100 · £102K/yr market · 129K searches/yr · £10.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · £102K/yr market · 129K searches/yr · £10.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Engine Degreaser — £102K/yr Amazon UK Niche (2026) - Flapen"
---
# **engine degreaser**
**Skip it**
A small market ($102K/yr) — this niche doesn't clear our bar today.
Market size 25Growth 27Conversion 79Competition 26Returns 99Price range 33Avg price 33Brand share 44Review moat 67Quality gap 38
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****825.89**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****£10.00**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£4.48–£20.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+1.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****£102K**
£102K/yr · 129K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, engine degreaser is a £102K/yr Amazon United Kingdom market (129K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 44/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **engine degreaser market data**
- **Units sold / yr**
- **10K–13K**
- avg 250–500/product
- **Revenue / yr**
- **£100K–£125K**
- units × avg price
- **Conversion rate**
- **7.9%**
- **Avg BSR**
- **#21**
- **Page quality**
- **0%**
- **Prime**
- **72%**
- **Sponsored**
- **56%**
- **Out of stock**
- **4.1%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▼falling
**Sellers**
**62**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**69%**
Top 20: 100%
**Open market**
**17%**
- Chemical Trade Store27% - STP23% - Autoglym17% - Gunk6% - AXpower Inspirational Technology Empowering People5% - Aspect Distribution4% - Open — no brand owns it (7 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +1.8% search growth over the last 90 days.
5K4KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/uk/automotive/engine-degreaser/trend)
## **Top engine degreaser search terms**
- **engine degreaser**43K/yr+0.7%9.3% conv. - **engine cleaner**27K/yr-4.0%5.3% conv. - **engine bay cleaner**13K/yr+16.8%6.1% conv. - **engine degreaser spray**6K/yr+47.7%11.7% conv. - **car engine cleaner**8K/yr+3.9%3.9% conv. - **engine cleaner spray**4K/yr+140.8%6.5% conv. - **car degreaser**4K/yr+1.3%4.8% conv. - **parts washer fluid**5K/yr+0.2%3.3% conv. - **degreaser spray automotive**2K/yr+2.1%8.9% conv. - **engine degreaser heavy duty**7K/yr-45.1%11.0% conv. [**All search terms **](https://flapen.com/research/uk/automotive/engine-degreaser/search-terms)
## **Top engine degreaser 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%£10K20%£20K30%£31K40%£41K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**STP Engine Degreaser Professional Series 500ml Penetrates and Dissolves Heavy Dirt and Deposits Easily and Quickly Restore your Engines Performance for a Smoother Engine**STP**£5.63**4.6★1,139 rev](https://www.amazon.co.uk/dp/B0085M3XDQ) [2**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 2.5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£7.24**4.4★132 rev](https://www.amazon.co.uk/dp/B0F4DYV334) [3**Autoglym Engine and Machine Cleaner 1L - Engine Cleaning Spray Water-Based Formula Dissolves Oil Grease and Grime Easy to Apply**Autoglym**£8.47**4.6★2,261 rev](https://www.amazon.co.uk/dp/B001AZE5WS) [4**GUNK GK6868 Ultra Engine Degreasant 5 Liter**Gunk**£9.10**4.3★3,250 rev](https://www.amazon.co.uk/dp/B006HFM8MA) [5**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£12.48**4.4★132 rev](https://www.amazon.co.uk/dp/B0F4DXZN8Q)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 2.5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£7.24**132 rev1y ago](https://www.amazon.co.uk/dp/B0F4DYV334) [**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£12.48**132 rev1y ago](https://www.amazon.co.uk/dp/B0F4DXZN8Q) [**STP Engine Degreaser 2 Pack x 500ml Heavy Duty Bay Cleaner Removes Oil Grease & Dirt Powerful Car Engine Cleaner Spray for Car Maintenance**AXpower Inspirational Technology Empowering People**£9.89**61 rev1y ago](https://www.amazon.co.uk/dp/B0DXDFD699) [**STP Engine Degreaser 4 Pack x 500ml Heavy Duty Bay Cleaner Removes Oil Grease & Dirt Powerful Car Engine Cleaner Spray for Car Maintenance**AXpower Inspirational Technology Empowering People**£14.82**61 rev1y ago](https://www.amazon.co.uk/dp/B0DXDDNQRQ) [**Gtechniq W5 All Purpose Cleaner Car Degreaser Spray for Oil 1L**Gtechniq**£10.81**1,113 rev2y ago](https://www.amazon.co.uk/dp/B0CNKZ7Z64)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Gtechniq W5 All Purpose Cleaner Car Degreaser Spray for Oil 1L**Gtechniq**£10.81**4.6★**▲ 102%**](https://www.amazon.co.uk/dp/B0CNKZ7Z64) [**Chemical Trade Store - Heavy Duty Cleaner and Degreaser - 1 Litre**Chemical Trade Store**£4.48**4.4★**▲ 54%**](https://www.amazon.co.uk/dp/B0CZ9T6GQG) [**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£12.48**4.4★**▲ 33%**](https://www.amazon.co.uk/dp/B0F4DXZN8Q) [**Chemical Trade Store - Concentrated Engine Degreaser & Parts Washer Fluid 2.5L - Heavy-Duty Solvent for Grease Oil & Grime - Powerful Cleaner for Engines Machinery & Workshop Tools**Chemical Trade Store**£7.24**4.4★**▲ 29%**](https://www.amazon.co.uk/dp/B0F4DYV334) [**CarPlan ECL005 Engine Cleaner and Degreaser 5L**CarPlan**£20.25**4.6★**▲ 21%**](https://www.amazon.co.uk/dp/B009EP7IEI)
**~~View all trending →~~**
## **What buyers say about engine degreaser**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**21%
*“Great cleaner”*
**Quality-Overall**19%
*“Excellent Product”*
**Value For Money**14%
*“Works well for the money”*
**Advertised Vs Actual Product**12%
*“Does the job”*
**Efficiency**8%
*“Cleaned my Lambretta engine really well considering it was last cleaned properly 20+ years ago when it was restored”*
**Strength**4%
*“Very strong”*
**Ease Of Use**3%
*“Easy to use”*
**Lubrication**3%
*“The stuff is brilliant for cleaning oil”*
**De-Grease**3%
*“Allways excellent at removing oil and grease off engine and car parts”*
**Product Condition**3%
*“Both came up like new”*
### **What buyers complain about **
**Ease Of Cleaning**22%
*“Very poor cleaner”*
**Value For Money**11%
*“Bit pricey”*
**Functionality-Overall**10%
*“Does not work”*
**Quality-Overall**10%
*“Pretty rubbish”*
**De-Grease**7%
*“Greasy”*
**Weight Heavy**6%
*“Heavy duty”*
**Pressure**5%
*“Lost pressure in storage”*
**Instructions/User Manual/Troubleshooting**5%
*“I followed instructions but unfortunately it didn't do a thing.”*
**Leak-Proof**4%
*“leak from the spray surrounds too”*
**Spray/Flow**2%
*“why they cant sell a spray that doesn't leak everywhere when using it is beyond me”*
### **Top return reasons **
**Leak-Proof**53%
**Functionality-Overall**9%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**4%
**Spray/Flow**4%
**Wet Cleaning**3%
**Value For Money**3%
**Compatibility-Overall**3%
**Quality-Overall**2%
**Instructions/User Manual/Troubleshooting**1%
## **Common questions**
- **Is engine degreaser profitable to sell on Amazon United Kingdom?**
- The niche generates £102K/yr across 18 tracked products. 90-day search growth is +1.8%. Flapen's verdict: Skip it (44/100).
- **How competitive is the engine degreaser niche?**
- 13 brands and 62 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in engine degreaser?**
- Top complaints mined from reviews: Ease Of Cleaning, Value For Money, Functionality-Overall. The return rate is 0.3%.
- **When does demand for engine degreaser peak?**
- Demand peaks in Aug–Sep; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the engine degreaser niche?**
- Listings span £4.48–£20.25; the average listing price is £10.00 (sweet spot $15–$100). The average incumbent carries 826 reviews — the moat a new listing must climb.
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