


🛑 Stop at Nothing with Castrol DOT 4 – The Brake Fluid That Means Business
Castrol 15036B Brake Fluid DOT 4 is a premium 1-liter synthetic brake fluid engineered for professional-grade performance. With a high boiling point and near-zero moisture content, it ensures reliable, spongeless braking under extreme conditions. Trusted by thousands of users and designed to meet OEM standards, this fluid delivers consistent safety and durability for your vehicle’s braking system.

| ASIN | B0069RGK20 |
| Best Sellers Rank | 187,526 in Automotive ( See Top 100 in Automotive ) 4,205 in Vehicle Oils & Fluids |
| Brand | Castrol |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,643) |
| Date First Available | 19 Oct. 2011 |
| Item Weight | 920 g |
| Item model number | 15036B |
| Manufacturer | Castrol Limited |
| Manufacturer part number | 15036B |
| Model | 15036B |
| OEM Part Number | 21807 |
| Product Dimensions | 40 x 5 x 10 cm; 920 g |
| Viscosity | 150-400 centistokes at 100°C |
J**S
Top product
Easy to use. No leaking, good price and quality oil as expected
A**R
The only Perfectly Reliable Brake fluid In Amazon.
Unlike Carlube and Comma brake fluids, castrol's brake fluid has 0% moisture as all brake fluid should have. Btw, I returned the other 2 because carlube has 2% moisture (same as my 4 year old brake fluid) and commas brake fluid broke the scale of my brake fluid tester at above 5%. To help you understand, 3% moisture can lower a brake fluids boiling point by a 100 degrees! Last thing I need is my brake fluid to turn into gas which is compressible while making my brakes feel spongy which actually causes it to not work. But Castrol is the one brand you can put your trust in.
M**K
Best stuff on the market
Very reasonable priced , Good reliable brand, No corners cut when it comes to brakes
M**R
It's what Audi specify
Reasonable price for an excellent product.
R**Y
Quality product
Reasonable cost and good quality, fast delivery.
E**H
Used immediately
Spongy brakes needed attention. Castrol brand first class. Brakes fine now.
M**E
Its yellow!
On first opening the bottle I was a bit surprised to see the fluid was yellow! Most brake fluids start off colourless, and then develop a yellow hue over time as they absorb more water. So they therefore act as an indicator of the age of the brake fluid. As the bottle also didn't have the normal seal you typically find on things like bottles of engine oil, just a seal pad on the inside of the lid, I was immediately concerned that the fluid had "gone off". A quick search however found the MSDS for this product which states that this DOT4 fluid is indeed yellow when new. So far it works as well as the old fluid in my motorbikes brake system (Honda), will be interesting to see what colour it has changed to in 2 years time!
S**R
Quality product
Quality product as expected from castrol
R**G
J'utilise la marque castrol depuis les années 70 , c'était pour moto 2 temps , depuis pour mes voitures j'ai toujours pris cette marque , et aujourd'hui ma voiture actuelle qui fait + de 200CV a castrol pour le moteur et freins , jamais aucun problèmes , je ne changerai pour rien , et quand je change de véhicule , c'est vidange et remplacement par castrol , comme cela je suis très tranquille , cette marque est spécialisée dans les huiles en tout genre et c'est du sérieux
L**.
Guter Preis
X**N
Es un producto excelente. proteccion alta por lo tanto mantiene el circuito de frenos limpio incluso si se supera el tiempo de susttitucion del fluido.
E**L
Classico olio
R**J
Buen líquido.
TrustPilot
2 个月前
4天前