Brake Fluid
FailThe top 5 brands take 100% of clicks, so Brake Fluid is a Fail.
- Flapen Score
- 41 / 100Ranks 635 of 811 Automotive niches · −8 vs the category median of 4941
- Market size
- £369K/yr242K searches / yr
- 90-day growth
- +1.7%search demand this quarter
- Competition
- 96%top-5 click share · 4 brands · 15 sellers
Flapen Score
Brake Fluid against its category
The dotted line is the Automotive average. Past it, Brake Fluid is stronger. Inside it, weaker.
Market
The Brake Fluid market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Brake Fluid 242K times last year and spent an estimated £369K. All 4 brands take every click. Flapen scores it 41 out of 100, a Fail.
01 · Demand
An estimated 14.8% of those searches ended in a purchase.
Shoppers searched for this 242K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 14.8% of those searches ended in a purchase. Searches in the last 90 days moved +1.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £369K a year.
- Searches, last 12 months
- 242K
- Growth, 90 days vs prior 90
- +1.7%
- Conversion, latest week
- 14.8%
- Market size, estimated
- £369Ka year
- Peak month
- May1.7× the quietest month
- Top search term
- dot 4 brake fluid84K searches a year
02 · Price
A sale here is worth £10.33.
Listings sell for £10.33 on average, from £3.86 to £24.19. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 5,000 to 6,000 of them. At £10.33 that is £52K to £62K a year per listing.
- Average price
- £10.33under the $15 to $100 sweet spot
- Price range
- £3.86–£24.19
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 5,000–6,000
- Revenue per listing a year
- £52K–£62K
- Returns
- 0.5%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
67% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #45 within Oils & Fluids. It carries 1,266 reviews at 4.73 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 67%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #45in Oils & Fluids
- Average rating
- 4.73 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,266per listing
- Listings tracked
- 6
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 54 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 54 months
Products
Top Brake Fluid products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 18, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Brake Fluid
- Price
- £3.86
- Rating
- 4.7/5
- Reviews
- 1,243
- Age
- 7y ago

Carlube BFL100 Brake Fluid 1L
- Price
- £5.54
- Rating
- 4.7/5
- Reviews
- 2,302
- Age
- 11y ago

Castrol Brake Fluid DOT4 1L
- Price
- £10.87
- Rating
- 4.8/5
- Reviews
- 124
- Age
- 1y ago

Comma BF4ESP1L DOT 4 ESP 1L Synthetic Brake Fluid
- Price
- £9.35
- Rating
- 4.7/5
- Reviews
- 1,143
- Age
- 16y ago

Comma BF45L Dot 4 Synthetic Brake Fluid 5000ml Volume
- Price
- £24.19
- Rating
- 4.8/5
- Reviews
- 481
- Age
- 15y ago
Trending
estimated 90-day click momentum
Carlube BFE050 Brake Fluid
- Price
- £8.14
- Rating
- 4.7/5
- Reviews
- 2,302
- Age
- 11y ago

Castrol Brake Fluid DOT4 1L
- Price
- £10.87
- Rating
- 4.8/5
- Reviews
- 124
- Age
- 1y ago

Carlube BFL100 Brake Fluid 1L
- Price
- £5.54
- Rating
- 4.7/5
- Reviews
- 2,302
- Age
- 11y ago

Comma BF4ESP1L DOT 4 ESP 1L Synthetic Brake Fluid
- Price
- £9.35
- Rating
- 4.7/5
- Reviews
- 1,143
- Age
- 16y ago

Brake Fluid
- Price
- £3.86
- Rating
- 4.7/5
- Reviews
- 1,243
- Age
- 7y ago
Newest
by launch date
Castrol Brake Fluid DOT4 1L
- Price
- £10.87
- Rating
- 4.8/5
- Reviews
- 124
- Age
- 1y ago

Brake Fluid
- Price
- £3.86
- Rating
- 4.7/5
- Reviews
- 1,243
- Age
- 7y ago

Carlube BFL100 Brake Fluid 1L
- Price
- £5.54
- Rating
- 4.7/5
- Reviews
- 2,302
- Age
- 11y ago

Carlube BFE050 Brake Fluid
- Price
- £8.14
- Rating
- 4.7/5
- Reviews
- 2,302
- Age
- 11y ago

Comma BF45L Dot 4 Synthetic Brake Fluid 5000ml Volume
- Price
- £24.19
- Rating
- 4.8/5
- Reviews
- 481
- Age
- 15y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 96% of clicks. A locked shelf that new listings rarely crack.
Brands
4 flat
Sellers
15
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
96%
Top 20: 100%
Open market
0%
- Prestone37%
- Carlube35%
- Comma15%
- Castrol14%
Demand
Brake Fluid search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.7×
Search terms
Top Brake Fluid search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- dot 4 brake fluid84K/yr
- brake fluid87K/yr
- brake fluid dot 421K/yr
- dot4 brake fluid11K/yr
- brake fluid by reg4K/yr
- dot 48K/yr
- break fluid9K/yr
- dot 4 brake fluid motorcycle5K/yr
- dot 4 brake and clutch fluid6K/yr
- break fluid dot 44K/yr
Reviews and returns
What reviews say buyers love and hate about Brake Fluid
We read the reviews and the return reasons for every product selling here.
“smaller than I thought for price”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
14 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Brake Fluid questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









