What is DOT 5.1 brake fluid used for?
Application. DOT 5.1 Brake Fluid is recommended for re-fill or top-up of brake and clutch systems in passenger cars, 4WD’s, motorcycles, light and heavy-duty commercial vehicles, mining, construction, agricultural and all other moving vehicle types that require a non-petroleum based brake & clutch hydraulic fluid.
Is DOT 5.1 silicone based?
DOT 3, DOT 4, and DOT 5.1 are all glycol-ether based. DOT 5 brake fluid is silicone based. Glycol based fluids are hygroscopic, meaning they gradually absorb moisture from the atmosphere and disperse it throughout the system.
Is all DOT 5 brake fluid silicone?
DOT 5 is a silicone-based fluid. Silicone-based fluid is hydrophobic, meaning it repels water. Moisture introduced into a brake system with DOT 5 fluid does not mix with the brake fluid.
Which brake fluid is silicone?
DOT 5
DOT 5 is silicone-based brake fluid and is used in most new cars today. DOT 5 is expensive, but it has a dry boiling point of 356 degrees.
What cars use silicone brake fluid?
SILICONE BASED BRAKE FLUID: Often used in classic and vintage cars and military type vehicles because silicone based brake fluid will not corrode internal brake parts nor will it damage paint work. An added bonus when used in some show cars.
Is DOT 5 silicone brake fluid?
They are all glycol-based braking fluids. On the other hand, brake fluid DOT 5 is a silicone-based product, and it should not be mixed with other fluids. This braking fluid was designed primarily for military vehicles.
Does DOT 5.1 absorb water?
Glycol fluids like DOT 3, DOT 4 and DOT 5.1 are actually designed to absorb water instead of separating like DOT 5. This water absorption means glycol-based fluids are “hygroscopic”.
Does DOT 5.1 need brake fluid?
DOT 5.1 Fluid In comparison to other DOT braking fluids, 5.1 brake fluid can withstand higher temperatures without becoming sticky. It has better performance than any other DOT brake fluid and can sustain greater dry and wet boiling temperatures. It is compatible with all glycol-based braking fluids but not with DOT 5.