engine oil
Worth a lookShows low returns (0.5%), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.
Returns
Incredible0.5%return rate — above 6% kills the launch gate
Market size
Incredible£2.1M£2.1M/yr · 1.7M searches
Avg price
Great£19.55avg listing price — sweet spot $15–$100
Price range
Good£6.50–£35.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.3%search→purchase rate — share of searches ending in a sale
Growth
Okay+11.8%90-day search growth — must beat 0% to launch
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Review moat
Okay3,194avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad97%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, engine oil is a £2.1M/yr Amazon United Kingdom market (1.7M searches/yr). The top 5 brands hold 97% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
Market data
- Units sold / yr
- 100K–125K
- avg 3,000–4,000/product
- Revenue / yr
- £2.0M–£2.4M
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 6.3%
- Avg BSR
- #50
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 88%
- Out of stock
- 8.9%
- Avg brand age
- 79 months
- Avg seller age
- 177 days
Competition
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
7 flat
Sellers
52
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
64%
Top 20: 95%
Open market
1%
- Castrol78%
- Carlube8%
- MANNOL5%
- TotalEnergies4%
- Redex2%
- ZCIZIU1%
- Open — no brand owns it (1 brand, 1%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +11.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 4L
Castrol£25.264.8★15,145 rev
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 1L
Castrol£10.524.8★15,145 rev
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 5L
Castrol£32.114.8★15,145 rev
Castrol MAGNATEC 5W-30 C3 Engine Oil 1L
Castrol£7.644.8★1,287 rev
Castrol MAGNATEC 5W-30 A5 Engine Oil 5L
Castrol£27.894.8★1,339 rev
Newest
by launch date
Carlube Triple R 5W-30 Fully Synthetic BMW 4L
Carlube£22.3071 rev
Carlube Triple R 5W-30 ACEA C2/C3 API SP Fully Synthetic Engine Oil 4L
Carlube£20.8339 rev
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 4L
Castrol£25.2615,145 rev
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 1L
Castrol£10.5215,145 rev
Castrol EDGE 5W-30 LL Advanced Fully Synthetic Engine Oil Meets ACEA C3 & API SQ Specifications 5L
Castrol£32.1115,145 rev
Trending
90-day click momentumCarlube Triple R 5W-30 ACEA C2/C3 API SP Fully Synthetic Engine Oil 4L
Carlube£20.834.6★
Carlube Triple R 5W-30 Fully Synthetic BMW 4L
Carlube£22.304.7★
Castrol MAGNATEC 5W-30 C3 Engine Oil 5L
Castrol£31.134.8★
Castrol MAGNATEC 5W-30 P Engine Oil 5 Litre
Castrol£35.524.7★
Castrol MAGNATEC 5W-30 A5 Engine Oil 4L
Castrol£25.334.8★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great value for money”
“It also feels like a good balance between quality”
“Great lubricant”
“As advertised”
“Good Engine Oil”
“Very good value motor oil delivered quickly”
“Works effectively”
“Easy to use”
“The engine is quieter, more responsive, and the overall driving experience feels much better”
“Fit for purpose”
What buyers complain about
“Cheap price”
“0 star not a good oil for your engine”
“Very cheap quality”
“Leaked everywhere”
“Engine sounds”
“This oil is showing as not compatible with my car even although it's recommended by Peugeot”
“the engine oils used in vehicles that also use gasoline are different”
“Not really a perfect fit”
“within 4 months of using this oil the colour was darkish brown”
“This version doesnt seem to have titanium”
Top return reasons
Common questions
- Is engine oil profitable to sell on Amazon United Kingdom?
- The niche generates £2.1M/yr across 24 tracked products. 90-day search growth is +11.8%. Flapen's verdict: Worth a look (54/100).
- How competitive is the engine oil niche?
- 7 brands and 52 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in engine oil?
- Top complaints mined from reviews: Value For Money, Lubrication, Quality-Overall. The return rate is 0.5%.
- When does demand for engine oil peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the engine oil niche?
- Listings span £6.50–£35.52; the average listing price is £19.55 (sweet spot $15–$100). The average incumbent carries 3,194 reviews — the moat a new listing must climb.
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