engine degreaser
Skip itA small market ($102K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Review moat
Good825.89avg incumbent reviews — the moat a new listing must climb
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay£10.00avg listing price — sweet spot $15–$100
Price range
Okay£4.48–£20.25cheapest 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
Okay69%top-5 click share — leaders hold, buyers still browse
Market size
Okay£102K£102K/yr · 129K searches
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
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.Peak months: Aug, Sep · busiest ÷ quietest = 2.1×
Top engine degreaser search terms
- engine degreaser43K/yr
- engine cleaner27K/yr
- engine bay cleaner13K/yr
- engine degreaser spray6K/yr
- car engine cleaner8K/yr
- engine cleaner spray4K/yr
- car degreaser4K/yr
- parts washer fluid5K/yr
- degreaser spray automotive2K/yr
- engine degreaser heavy duty7K/yr
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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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£5.634.6★1,139 rev
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£7.244.4★132 rev
Autoglym Engine and Machine Cleaner 1L - Engine Cleaning Spray Water-Based Formula Dissolves Oil Grease and Grime Easy to Apply
Autoglym£8.474.6★2,261 rev
GUNK GK6868 Ultra Engine Degreasant 5 Liter
Gunk£9.104.3★3,250 rev
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£12.484.4★132 rev
Newest
by launch dateChemical 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£7.24132 rev
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£12.48132 rev
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£9.8961 rev
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£14.8261 rev
Gtechniq W5 All Purpose Cleaner Car Degreaser Spray for Oil 1L
Gtechniq£10.811,113 rev
Trending
90-day click momentumGtechniq W5 All Purpose Cleaner Car Degreaser Spray for Oil 1L
Gtechniq£10.814.6★
Chemical Trade Store - Heavy Duty Cleaner and Degreaser - 1 Litre
Chemical Trade Store£4.484.4★
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£12.484.4★
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£7.244.4★
CarPlan ECL005 Engine Cleaner and Degreaser 5L
CarPlan£20.254.6★
What buyers say about engine degreaser
What buyers praise and complain about, mined from review topics.What buyers love
“Great cleaner”
“Excellent Product”
“Works well for the money”
“Does the job”
“Cleaned my Lambretta engine really well considering it was last cleaned properly 20+ years ago when it was restored”
“Very strong”
“Easy to use”
“The stuff is brilliant for cleaning oil”
“Allways excellent at removing oil and grease off engine and car parts”
“Both came up like new”
What buyers complain about
“Very poor cleaner”
“Bit pricey”
“Does not work”
“Pretty rubbish”
“Greasy”
“Heavy duty”
“Lost pressure in storage”
“I followed instructions but unfortunately it didn't do a thing.”
“leak from the spray surrounds too”
“why they cant sell a spray that doesn't leak everywhere when using it is beyond me”
Top return reasons
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.