fuel additives for petrol engines
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great11.7%search→purchase rate — share of searches ending in a sale
Review moat
Okay2,063.71avg incumbent reviews — the moat a new listing must climb
Market size
Okay£153K£153K/yr · 175K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Avg price
Bad£7.50avg listing price — sweet spot $15–$100
Growth
Bad-9.8%90-day search growth — must beat 0% to launch
Competition
Bad93%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad£2.80–£12.96cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, fuel additives for petrol engines is a £153K/yr Amazon United Kingdom market (175K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
fuel additives for petrol engines market data
- Units sold / yr
- 20K–25K
- avg 2,500–3,000/product
- Revenue / yr
- £150K–£188K
- units × avg price
- Conversion rate
- 11.7%
- Avg BSR
- #28
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 86%
- Out of stock
- 0.0%
- Avg brand age
- 78 months
- Avg seller age
- 179 days
Competition & brand share
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 flat
Sellers
36
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
93%
Top 20: 100%
Open market
0%
- Redex72%
- Briggs & Stratton17%
- Wynn's7%
- Archoil3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -9.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top fuel additives for petrol engines search terms
- redex petrol system cleaner31K/yr
- redex28K/yr
- fuel stabiliser petrol20K/yr
- fuel additives for petrol engines10K/yr
- petrol additives for petrol engines10K/yr
- fuel stabilizer9K/yr
- petrol cleaner8K/yr
- petrol additive8K/yr
- fuel cleaner petrol6K/yr
- petrol system cleaner6K/yr
Top fuel additives for petrol engines 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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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★6,175 rev
Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381
Briggs & Stratton£9.074.6★3,321 rev
Redex Diesel Fuel System Cleaner 250ml Diesel Additives To Remove Harmful Emissions Maximise Performance & Increase Fuel Economy Fuel Additives For Diesel Engines Suitable For Hybrids
Redex£2.944.6★3,181 rev
Redex Petrol System Cleaner 500ml Petrol Injector Cleaner To Remove Harmful Deposits Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines Suitable For Hybrids
Redex£7.974.5★696 rev
Wynns Xtreme Petrol System Cleaner - Complete Fuel System Cleaner - Restores Fuel Economy & Engine Performance - Prevents Turbo EGR & Catalytic Converter Issues - 325ml
Wynn's£7.264.7★409 rev
Newest
by launch date
Wynns Specialist E10 Petrol Protector - Complete Fuel System Protection Against Ethanol Damage - Lubricates & Protects Seals Gaskets & Components - Reduces Friction & Wear - 250ml
Wynn's£9.53277 rev
![Archoil [PETROL] AR6900-P Max Advanced PETROL Fuel Additive Concentrate Treats 500L of Fuel Petrol Injector Cleaner GPF Turbo EGR Valve Cleaner Super Unleaded Convertor (500ml)](https://m.media-amazon.com/images/I/51yIzhcN4IL.jpg)
Archoil [PETROL] AR6900-P Max Advanced PETROL Fuel Additive Concentrate Treats 500L of Fuel Petrol Injector Cleaner GPF Turbo EGR Valve Cleaner Super Unleaded Convertor (500ml)
Archoil£12.96387 rev
Wynns Xtreme Petrol System Cleaner - Complete Fuel System Cleaner - Restores Fuel Economy & Engine Performance - Prevents Turbo EGR & Catalytic Converter Issues - 325ml
Wynn's£7.26409 rev
Redex Petrol System Cleaner 500ml Petrol Injector Cleaner To Remove Harmful Deposits Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines Suitable For Hybrids
Redex£7.97696 rev
Redex Diesel Fuel System Cleaner 250ml Diesel Additives To Remove Harmful Emissions Maximise Performance & Increase Fuel Economy Fuel Additives For Diesel Engines Suitable For Hybrids
Redex£2.943,181 rev
Trending
90-day click momentumArchoil [PETROL] AR6900-P Max Advanced PETROL Fuel Additive Concentrate Treats 500L of Fuel Petrol Injector Cleaner GPF Turbo EGR Valve Cleaner Super Unleaded Convertor (500ml)
Archoil£12.964.7★
Wynns Specialist E10 Petrol Protector - Complete Fuel System Protection Against Ethanol Damage - Lubricates & Protects Seals Gaskets & Components - Reduces Friction & Wear - 250ml
Wynn's£9.534.6★
Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381
Briggs & Stratton£9.074.6★
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★
Redex Petrol System Cleaner 500ml Petrol Injector Cleaner To Remove Harmful Deposits Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines Suitable For Hybrids
Redex£7.974.5★
What buyers say about fuel additives for petrol engines
What buyers praise and complain about, mined from review topics.What buyers love
“Great value for money”
“Improves fuel efficiency”
“Best on the market”
“As advertised”
“Did the job”
“Gave the car a good clean out”
“Easy to use”
“after a couple of uses the engine feels a bit smoother”
“Trusted for years”
“My engine was running quite right, so I used Redex and also V-Power and it's running fine now”
What buyers complain about
“Product was leaking and toxic”
“Very expensive for a 250ml bottle”
“Not bothered about the smell of it as its in the fuel tank of my car”
“Turned off fault light on Seat Ibiza 2016”
“Almost no instructions”
“Awful messed up my fuel system”
“Be caution on 2 stroke products as I would imagine it would have an impact on how well the oil can lubricate the bore and piston, so with the 2 stroke's I just let them idle till the fuel runs out”
“more corrosive”
“Badly designed bottle”
Top return reasons
Common questions
- Is fuel additives for petrol engines profitable to sell on Amazon United Kingdom?
- The niche generates £153K/yr across 7 tracked products. 90-day search growth is -9.8%. Flapen's verdict: Skip it (34/100).
- How competitive is the fuel additives for petrol engines niche?
- 4 brands and 36 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in fuel additives for petrol engines?
- Top complaints mined from reviews: Leak-Proof, Value For Money, Smell. The return rate is 0.1%.
- When does demand for fuel additives for petrol engines peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the fuel additives for petrol engines niche?
- Listings span £2.80–£12.96; the average listing price is £7.50 (sweet spot $15–$100). The average incumbent carries 2,064 reviews — the moat a new listing must climb.