dot 4 brake fluid
Worth a lookShows searches that convert (11.2% search→purchase), but strong incumbent ratings (4.8★) keeps it on the watch list.
Conversion
Great11.2%search→purchase rate — share of searches ending in a sale
Returns
Great1.2%return rate — above 6% kills the launch gate
Avg price
Great$15.96avg listing price — sweet spot $15–$100
Price range
Good$5.68–$36.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$563K$563K/yr · 314K searches
Review moat
Okay1,504.45avg incumbent reviews — the moat a new listing must climb
Growth
Okay+18.7%90-day search growth — must beat 0% to launch
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Competition
Bad84%top-5 click share — a locked-up shelf
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Competition
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
95
Top-5 brand share
89%
Open market
8%
- Valvoline41%
- STP32%
- Motul8%
- Bosch4%
- Liqui Moly3%
- Lucas Oil3%
- Open — no brand owns it (3 brands, 8%)
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 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Valvoline DOT 3 & 4 Synthetic Brake Fluid with High Boiling Point Corrosion Protection Vapor Lock Resistance Compatible with ABS Disc and Drum Brake Systems 32oz
Valvoline$9.994.8★1,285 rev
STP Synthetic DOT 4 Brake Fluid 12 oz For ABS Disc Drum Systems
STP$7.534.8★727 rev
Valvoline DOT 3 & 4 Synthetic Brake Fluid with High Boiling Point Corrosion Protection Vapor Lock Resistance Compatible with ABS Disc and Drum Brake Systems 12oz
Valvoline$5.684.8★1,285 rev
Motul RBF 600 Brake Fluid DOT 4 Racing & High Performance 100% Synthetic Brake Fluid for Cars & Motorcycles Track Day Street & Performance Applications 500ml
Motul$19.844.9★2,522 rev
BOSCH ESI6-32N Low Viscosity Extended Life Brake Fluid - Compatible with All Vehicles Designed to Use DOT 3 DOT 4 and DOT 5.1 Brake Fluids; 1 Quart
Bosch$19.504.8★3,719 rev
Newest
by launch date
Quicksilver DOT 4 Brake Fluid for Marine Automotive and Powersports Brake Systems 12oz
Quicksilver$9.281,921 rev
DOT 4 Standard Brake Fluid
Maxima$12.30361 rev
Liqui Moly Brake Fluid DOT 4 | 500 ML | SKU: 20154
Liqui Moly$13.2762 rev
BOSCH ESI6-32N Low Viscosity Extended Life Brake Fluid - Compatible with All Vehicles Designed to Use DOT 3 DOT 4 and DOT 5.1 Brake Fluids; 1 Quart
Bosch$19.503,719 rev
STP Synthetic DOT 4 Brake Fluid 12 oz For ABS Disc Drum Systems
STP$7.53727 rev
Trending
90-day click momentumValvoline DOT 3 & 4 Synthetic Brake Fluid with High Boiling Point Corrosion Protection Vapor Lock Resistance Compatible with ABS Disc and Drum Brake Systems 32oz
Valvoline$9.994.8★
Liqui Moly Brake Fluid DOT 4 | 500 ML | SKU: 20154
Liqui Moly$13.274.8★
Valvoline DOT 3 & 4 Synthetic Brake Fluid with High Boiling Point Corrosion Protection Vapor Lock Resistance Compatible with ABS Disc and Drum Brake Systems 12oz
Valvoline$5.684.8★
Motul RBF 600 Brake Fluid DOT 4 Racing & High Performance 100% Synthetic Brake Fluid for Cars & Motorcycles Track Day Street & Performance Applications 500ml (2 Pack)
Motul$36.054.9★
Motul RBF 600 Brake Fluid DOT 4 Racing & High Performance 100% Synthetic Brake Fluid for Cars & Motorcycles Track Day Street & Performance Applications 500ml
Motul$19.844.9★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +18.7% search growth over the last 90 days.Peak months: May · busiest ÷ quietest = 1.8×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Good product from a trusted brand”
“Good value”
“As advertised”
“Brake fluid works great”
“Excellent replacement brake fluid”
“this is easy to use”
“BOTTLE SIZE WAS GOOD VALUE VERY VERSATILE”
“It certainly made breaking more firmly and responsibly”
“consistent hydraulic pressure”
“Excellent brake fluid”
What buyers complain about
“better price”
“Bad brake fluid quality”
“broke”
“It used to be instant hard”
“Tiny bottle”
“Brake fluid must be kept clean with no dust or particles contaminating fluid which could lead to braking issues”
“Defective No screw on top just foil”