Is Castrol DOT 4 brake fluid synthetic?

Castrol Brake Fluid DOT4 is a high boiling synthetic brake fluid which far exceeds the requirements of the SAE J1703,SAE J1704, FMVSS 116 DOT 4 , ISO 4925 and Jis K 2233 specifications. Castrol Brake Fluid DOT4 is designed for use in all brake systems particularly those which are exposed to extreme conditions. via

What is DOT 4 fluid used for?

Product Description. Mobil Brake Fluid DOT 4 is an extra high performance hydraulic brake fluid for use in automotive disc, drum and anti-skid brake systems and clutch systems. via

Are all DOT 4 brake fluids compatible?

All DOT 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. All polyethylene glycol-based fluids will not harm healthy rubber parts. via

Is Castrol brake fluid good?

The product also has excellent anti-vapor lock features. Castrol SRF reigns supreme when it comes to high-end brake fluid for racing. It has a wet boiling point that is higher than most high-performance brake fluids' dry boiling point. via

What viscosity is brake fluid?

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1.5 mm2/s

Dry boiling point Viscosity at 100 °C (212 °F)
DOT 5.1 260 °C (500 °F) ≥ 1.5 mm2/s
DOT 5.1 ESP 260 °C (500 °F) ≥ 1.5 mm2/s
ISO 4925 Class 3 205 °C (401 °F) ≥ 1.5 mm2/s
ISO 4925 Class 4 230 °C (446 °F) ≥ 1.5 mm2/s


Why is brake fluid purple?

Fresh DOT 5 brake fluid is a purple color. This allows you to easily distinguish between glycol- based and silicone-based brake fluid. via

Which oil is used in disc brake?

Broadly speaking, hydraulic disc brakes designed for bicycles will use either a mineral oil fluid, or an automotive DOT fluid. Genuine Shimano Mineral Oil is the only fluid compatible with Shimano brakes. via

What brake fluid has the highest wet boiling point?

1. Castrol React SRF. Not only does this racing brake fluid have a very high dry boiling point, but it also has an extremely high wet boiling point, in fact the highest we list. via

What brake fluid does Toyota use?

Polyalkylene glycol based brake fluid designed to hydraulically transmit braking force from the brake pedal to the brake calipers/pads. Meets DOT 3, FMVSS (Federal Motor Vehicle Safety Standard) No. 116 and J1703 brake fluid specifications. via

Is high-performance brake fluid worth it?

If you car is relatively light and modestly powered, fresh synthetic fluid is most likely enough for your needs. For heavier, more muscled track steeds, however, high-performance fluid is wells worth the switch. After a hard day at the track the entire brake system should be flushed and refilled with fresh fluid. via

Does boiling brake fluid ruin it?

If the boiling point of the brake fluid has dropped to too low a value due to high water content, there will be a risk of vapour locks forming in the brake system. The compression of these vapour locks can lead to the total failure of the brake system. via

Is all DOT 4 brake fluid low viscosity?

6 DOT 4 Low Viscosity Brake Fluid, 1 Liter. High-performance brake fluid. Low viscosity. 347°F wet boiling point. via

Is DOT 4 brake fluid flammable?

Is DOT 4 Brake Fluid Flammable? DOT 4 is a polyglycol ether-based hydraulic fluid, and on exposure to high temperatures, it will burn. It has a flashpoint on the lower side of the 210-375-degrees Fahrenheit limit, meaning it will easily burn compared to the silicon-based varieties. via

Why is brake fluid so corrosive?

What is brake fluid corrosion? Brake fluid itself doesn't corrode but when the additive package, which is part of the brake fluid, is depleted or breaks down, the brake fluid no longer has adequate anticorrosive inhibitors so corrosion of internal brake hydraulic components may occur. via

Can I use DOT 4 instead of mineral oil?

No, mineral oil and DOT brake fluid are different and are NOT compatible. via