ISO 4925:2020 - Road vehicles -- Specification of non-petroleum-base brake fluids for hydraulic systems". www.iso.org. In NA you can find though DOT5.1 at most autoparts stores, just google the most common ones or ask them over the phone. Also motor bikes carry those, as they are very suitable for extreme conditions. Brands to ask for: MOTUL DOT5.1, Halfords Brake Fluid DOT5.1, Raleigh Motorex Brake fluid dot5.1, SINOPEC DOT5.1 Synthetic Brake Fluid, Chrysler 5.001 000 989 08 107 11 [at Chrysler dealership], Brake fluid LUCAS DOT5.1, AVID PITSTOP HYDRAULIC DISC BRAKE FLUID DOT 5.1, AP Racing Formula Brake Fluid DOT 5.1, and so on. Me personally I went with MOTUL DOT5.1. However recently I bought another brand of DOT 4 brake fluid whcih had the word "Synthetic" written on it. Hmm. I don't think my usual supplier's bottles has this word. The information & links posted by Paulster2 offer excellent explanation of what the various types of brake fluid are. The International Standards Organisation has published its standard ISO 4925, defining classes 3, 4, and 5, as well as class 5.1, class 6 [2] and class 7 [3] [4] reflecting progressively higher performance for brake fluids.

DOT 4 Plus brake fluid - Autodoc

For Power Steering Fluid the MB recommendation is for MB Power Steering Fluid MB Part No. BQ 1 32 0001 Pentosin CHF 11S or MB Power Steering Fluid MB Part No. BQ 1 46 0001 or an approved Dexron III ATF, according to the Vehicle Model Year recommendation. Any fluid, from any brand, that complies with these two specs. is acceptable. Pentosin CHF11s by the way recommendation not only by MB, but also by Bentley, Porsche, Volvo, Saab, etc. Pentosin CHF11s is manufactured by Deutsche Pentosin Werke GmbH and is marketed under the Pentosin brand name or under different brand names such as MB, Volvo, VW, Land Rover, etc., with different internal part numbers, different price and different mark-up. The identical equivalent to the Pentosin CHF11s is the Febi S6161 fluid is manufactured by Febi-Bilstein Germany. DOT 5 is a silicone-based fluid and is separate from the series of DOT 2, 3, 4, 5.1. It is immiscible with water, and with other brake fluids, and must not be mixed with them. Systems can change fluid only after a complete system changeover, such as a total restoration.The Society of Automotive Engineers SAE has published standards J1703, J1704, and J1705, reflecting progressively higher performance for brake fluids. These have counterparts in the international standard, ISO 4925. The reason I had to top the Master Cylinder up in the 1st place was a hint at impending troubles, and the new brand of brake fluid has ntohing to do with this. When you are riding at speed you want to be sure that your brakes aren’t going to let you down and that a braking failure isn’t the penultimate experience of your life.

Mobil Brake Fluid DOT 4 | Halfords UK Mobil Brake Fluid DOT 4 | Halfords UK

The Federal Motor Vehicle Safety Standards (FMVSS) under FMVSS Standard No. 116 [5] defines grades DOT 3, DOT 4, DOT 5 and DOT 5.1, where DOT refers to the U.S. Department of Transportation. These are widely used in other countries. Their classifications broadly reflect the SAE's specifications, DOT 3 is equivalent to SAE J1703 and ISO class 3, DOT 4 to SAE J1704 and ISO class 4, etc. [6] Brake fluid is a central part of your brake system. It lubricates the internal mechanisms of the system and transfers the force your foot exerts on the pedal into the clamping force that stops your vehicle. For this reason, standards are put in place to ensure that the fluid meets key criteria and allows your brake system to work as designed.

What is the best brake fluid for Mercedes-Benz?

Online Browsing Platform ISO 4925:2020 - Road vehicles -- Specification of non-petroleum-base brake fluids for hydraulic systems". www.iso.org. Silicone based fluid is more compressible than glycol based fluid, leading to brakes with a spongy feeling. [14] It can potentially suffer phase separation/water pooling and freezing/boiling in the system over time - the main reason single phase hygroscopic fluids are used. [ citation needed] Characteristics of common braking fluids [15] [14] The important thing is, you want a fluid that combines high minimum boiling point with low viscosity. The low viscosity is so your ABS/TRACS system works optimally. The advantage of the Citroën LHM mineral oil based brake fluid is the absence of corrosion. Seals may wear out at high mileages but otherwise these systems have exceptional longevity. It cannot be used as a substitute without changing seals due to incompatibility with the rubber. [17] [ user-generated source] Compressibility [ edit ]

DOT 4 brake fluid when DOT 4+ is recommended? Can I use DOT 4 brake fluid when DOT 4+ is recommended?

There are three essential measures used to set a fluid’s final DOT rating that consumers should be aware of: Fluid is an important safety-critical component within a vehicle’s braking system. febi’s DOT 4, DOT 4 LV (low viscosity), DOT 4 Plus, DOT 5.1 and DOT 5.1 EHV (electric and hybrid vehicle) range of fully-synthetic brake fluids is based on glycols, and they contain oxidation and corrosion inhibitors, feature excellent dry and wet boiling point properties, and prevent vapour bubble formation.

Hydragas and Hydrolastic suspension were a widely used form of hydropneumatic suspension, designed by Alex Moulton, and used on British Leyland cars from the 1960s. This system was not engine-driven and did not involve the braking system. You will have a hard time though to find a DOT4+ other than MB just because this is not a standard. In Europe some alternatives are the MOL EVOX DOT4+, MOL EVOX DOT 5.1 or OMV Brake Fluid DOT 5.1.

Mobil Brake Fluid DOT 4

I also found this article which gives a lot of further information about brake fluids, especially where classic British motor cars are concerned.

How to Add Mercedes-Benz Brake Fluid

AN EXPLANATION OF BRAKE AND CLUTCH FLUIDS". Xpowerforums.com. Archived from the original on 2008-11-04 . Retrieved 2015-05-26. Brake fluids must maintain a low level of compressibility, even with varying temperatures to accommodate different environmental conditions. This is important to ensure consistent brake pedal feel. As compressibility increases, more brake pedal travel is necessary for the same amount of brake caliper piston force.