---
product_id: 48972674
title: "Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid"
brand: "comma"
price: "€ 39.30"
currency: EUR
in_stock: true
reviews_count: 12
category: "Comma"
url: https://www.desertcart.pt/products/48972674-comma-bf51l-1l-dot-5-1-synthetic-brake-fluid
store_origin: PT
region: Portugal
---

# Mixable with DOT 3 & 4 180°C wet boiling point DOT 5.1 high-temp synthetic Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid

**Brand:** comma
**Price:** € 39.30
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Stop Smarter, Drive Safer with Comma DOT 5.1!

## Quick Answers

- **What is this?** Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid by comma
- **How much does it cost?** € 39.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/48972674-comma-bf51l-1l-dot-5-1-synthetic-brake-fluid)

## Best For

- comma enthusiasts

## Why This Product

- Trusted comma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy Brand:** From a UK pioneer since 1965, Comma delivers proven quality that professionals rely on worldwide.
- • **Seamless Compatibility:** Non-silicone formula blends effortlessly with DOT 3 & DOT 4 fluids—upgrade without compromise.
- • **Confidence in Every Drop:** Boost your vehicle’s braking reliability and drive with peace of mind on every journey.
- • **Unrivaled Heat Resistance:** Withstands extreme braking heat at a minimum wet boiling point of 180°C for ultimate safety.
- • **Precision Engineered for Performance:** Specifically designed for high-performance vehicles and ABS systems to maximize braking efficiency.

## Overview

Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid is a premium, high-performance brake fluid engineered for modern vehicles. Featuring a minimum wet boiling point of 180°C, it ensures superior heat resistance essential for ABS and high-stress braking systems. Its non-silicone formula is compatible with DOT 3 and DOT 4 fluids, making it a versatile upgrade. Backed by Comma’s decades-long reputation, this brake fluid enhances braking efficiency and safety for confident driving.

## Description

Product Description Highest quality brake fluid - formulated for today's high performance vehicles The fluid has a minimum wet boiling point of 180C - ideal for all ABS systems Non-silicone based can be mixed safely with DOT 3 & DOT 4 fluids Specifications: FMVSS 116 DOT 5.1 ISO 4925 ISO 4925 (Class 3, 4 & 5.1) Manufacturer's Description The open road! The wind in your hair! The roar of the engine! That’s what cars are all about right? So surely your car deserves a little bit of love and care from time to time, just to keep it running as sweet as a nut. With a wide range of oils and speciality care products Comma are on hand to help keep your car and its engine in the best condition possible.To ensure your safety whilst driving you need to be sure that your brakes are reliable. Comma’s DOT 5.1 brake fluid has been specially designed for use with high performance vehicles in their braking, clutch and ABS systems. This product will provide you with the confidence that you are not only going to get great performance on the road but you will also be ensuring your safety by improving the efficiency of your braking system. This DOT 5.1 oil has been specifically designed to be a high temperature oil with a minimum wet boiling point of 180°c and also is compatible for mixing with DOT 3 and DOT 4 specification oils.Comma Oil and Chemicals was founded on a real ‘passion for performance’ in 1965 as a UK-based, independent oil 'blender'. Quickly establishing their products as being the first-choice supplier of engine oils to independent workshop mechanics in the UK, Comma has recently grown to distribute to more than 40 other countries around the world. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains 1x 1ltr Container of DOT 5.1 Break Fluid See more

Review: Works! - Great value performed well no complaints
Review: Another good Comma product - Don't know what to say about Comma brake fluid, it works and it's a good price. What I will say is all Comma products, oil, coolant, engine flush etc work extremely well and are a good price. If you take a look at there website you can find the right product for your vehicle by entering your reg number, makes life easier :)

## Features

- Suspected of damaging fertility or the unborn child.
- Premium Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003BPUSZS |
| Best Sellers Rank | 18,600 in Automotive ( See Top 100 in Automotive ) 85 in Car Brakes 103 in Greases & Lubricants |
| Brand | Comma |
| Customer Reviews | 4.6 4.6 out of 5 stars (329) |
| Date First Available | 10 Mar. 2010 |
| Item Weight | 998 g |
| Item model number | BF51L |
| Manufacturer | Comma Oil & Chemicals Ltd. |
| Manufacturer part number | BF51L |
| Model | BF51L |
| Product Dimensions | 8.99 x 7.01 x 26.01 cm; 997.9 g |
| Viscosity | DOT5.1 |

## Images

![Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid - Image 1](https://m.media-amazon.com/images/I/61f6908fiZL.jpg)

## Questions & Answers

**Q: Can I use this for my Mountain Bike Disks?**
A: have a look at the link and if it falls in the correct category i do not see why you cannot. Dot 5.1 is a bit overkill. The link is :http://www.epicbleedsolutions.com/blog/5-mistakes-to-avoid-when-bleeding-mountain-bike-brakes/ (disclaimer: always refer to your manufacturer)

**Q: Is this the purple silicone fluid?**
A: No, its not purple.

**Q: what break fluid should i use in my 2014 bmw 320d m sport touring**
A: BMW uses dot 4 brake fluid in BMW 320D's. Any DOT4 brake fluid will be okay, however this particular dot 5.1 fluid is relaively low quality, and many dot 4 fluids outperform it even when old.
Contact BMW or use a BMW forum to ensure that you end up with a high quality brake fluid that is applicable to your use case.

**Q: Can I use this to replace dot 4 that is currently in my focus mk2?**
A: Yes dot 5.1 can be used with both dot 3 and dot 4 brake fluid so it is fine to mix or use instead.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works!
*by R***K on 14 January 2026*

Great value performed well no complaints

### ⭐⭐⭐⭐⭐ Another good Comma product
*by J***Y on 12 March 2018*

Don't know what to say about Comma brake fluid, it works and it's a good price. What I will say is all Comma products, oil, coolant, engine flush etc work extremely well and are a good price. If you take a look at there website you can find the right product for your vehicle by entering your reg number, makes life easier :)

### ⭐⭐⭐⭐⭐ Much cheaper than buying piddling small bottles of Dot 5.1 for mtb
*by K***1 on 28 January 2026*

Good fluid for anything requiring Dot 5.1

## Frequently Bought Together

- Comma BF51L 1L Dot 5.1 Synthetic Brake Fluid
- STP Heavy Duty Car Brake Cleaner 500 ml, Cleans Brakes without Disassembly, Reduces Brake Noises, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
- MOLYSLIP - COPASLIP | High Temperature Copper Anti-Seize Grease | Withstands Extreme Temperature (Up To 1100°C) | Protects Against Galling, Seizure Rust and Corrosion | Ideal for Cars/Vehicles | 100g

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-18*