gearbox oil
Skip itA small market ($32K/yr) — this niche doesn't clear our bar today.
Returns
Great1.2%return rate — above 5% kills the launch gate
Review moat
Great366.28avg incumbent reviews — the moat a new listing must climb
Price range
Great£5.57–£48.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Avg price
Good£14.44avg listing price — sweet spot $15–$100
Conversion
Good4.2%search→purchase rate — share of searches ending in a sale
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Growth
Bad-2.1%90-day search growth — must beat 0% to launch
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Market size
Bad£32K£32K/yr · 53K searches
According to Flapen's Amazon United Kingdom niche tracking, gearbox oil is a £32K/yr Amazon United Kingdom market (53K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 47/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
gearbox oil market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- £36K–£43K
- units × avg price
- Conversion rate
- 4.2%
- Avg BSR
- #64
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 56%
- Out of stock
- 0.0%
- Avg brand age
- 93 months
- Avg seller age
- 187 days
Competition & brand share
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
11 flat
Sellers
44
Top-5 brand share
82%
Top 20: 100%
Top-5 click share
41%
Top 20: 79%
Open market
14%
- Castrol36%
- Comma15%
- febi bilstein14%
- Liqui Moly12%
- Carlube5%
- TotalEnergies5%
- Open — no brand owns it (5 brands, 14%)
Demand
Weekly Amazon search volume, last 20 weeks — -2.1% search growth over the last 90 days.Top gearbox oil search terms
- gearbox oil26K/yr
- gear oil9K/yr
- transmission oil8K/yr
- 75w80 gearbox oil6K/yr
- gear box oil4K/yr
Top gearbox oil 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Castrol Transmax Manual EP 80W 1L
Castrol£5.574.7★60 rev
Castrol Transmax Manual FE 75W 1L
Castrol£12.674.8★87 rev
Comma GO41L EP80W-90 1L GL4 Gear Oil
Comma£7.414.7★464 rev
febi bilstein 21829 Gear Oil SAE 75W (GL-4) pack of one (Package may vary)
febi bilstein£10.774.8★525 rev
Castrol Transmax Manual Transaxle Fluid 75W-90 1L
Castrol£11.584.8★292 rev
Newest
by launch date
TotalEnergies TRAXIUM DUAL 9 FE Synthetic 75W90 Transmission Oil API GL-4/5 MT-1 SAE J2360-1 Liter
TotalEnergies£13.7820 rev
Castrol Transmax Manual EP 80W 1L
Castrol£5.5760 rev
Castrol Transmax Manual FE 75W 1L
Castrol£12.6787 rev
Castrol Transmax Manual Transaxle Fluid 75W-90 1L
Castrol£11.58292 rev
Castrol Transmax Manual Multivehicle 75W-90 1L
Castrol£13.26188 rev
Trending
90-day click momentum
Carlube Driveline 75W-80 Fully Synthetic Manual Transmission Fluid - 5L
Carlube£22.584.9★
Castrol Transmax Axle EPX 80W-90 5L
Castrol£21.144.8★
Castrol Transmax Manual EP 80W 1L
Castrol£5.574.7★
Carlube Gear Oil EP 80W-90 Multipurpose 1L - Heavy Duty Lubricant with Extreme Pressure Additives
Carlube£7.644.6★
ELF Tranself NFX SAE 75W Transmission Fluid Gear Oil - API GL-4 - Approved by MB-235.17 RENAULT DBx/JXX/NDK1/NDX/PXX/SX/TLX - 1L
ELF£13.624.7★
What buyers say about gearbox oil
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“reasonable price”
“Does the job”
“Good oil & quite easy to pour out”
“it's unbelievable how smooth it is”
“Worked for my old vw camper”
“it's performance under heat”
“Well designed bottle”
“the car feels much lighter”
“My engine is now quieter”
What buyers complain about
“Little more expensive than some alternatives”
“probably neglected gearbox oil services”
“Not compatible with my car”
“Brought as sold”
“squeeze nozzle was hard work due to fill hole location”
Top return reasons
Common questions
- Is gearbox oil profitable to sell on Amazon United Kingdom?
- The niche generates £32K/yr across 39 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.1%. Flapen's verdict: Skip it (47/100).
- How competitive is the gearbox oil niche?
- 11 brands and 44 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 82% of demand.
- What do buyers complain about in gearbox oil?
- Top complaints mined from reviews: Value For Money, Lubrication, Compatibility-Overall. The return rate is 1.2%.
- What does it cost to enter the gearbox oil niche?
- Listings span £5.57–£48.32; the average listing price is £14.44 (sweet spot $15–$100). The average incumbent carries 366 reviews — the moat a new listing must climb.