Dot 2 brake fluid

Types of DOT 2 Brake Fluid

There are two main types of DOT 2 brake fluid that manufacturers offer, and they are as follows:

• Brominated Vegetable Oil (BVO)

  BVO is a food additive that is often used in soft drinks like Mountain Dew. Its main job is to help mix flavors and keep the drink tasting consistent. While it's not commonly found in other foods, there are some exceptions like citrus-flavored drinks, certain fruit-flavored snacks, and sports drinks. BVO's safety in food has been debated, with some countries banning it and others allowing limited use. In the U.S., the FDA considers BVO safe but recommends monitoring its intake. Alternatives for food manufacturers include gum arabic and high oleic canola oil.

• Braking Performance

  Brominated brake fluids, especially those with BVO, have been marketed as superior for high-performance vehicles. Proponents claim BVO can enhance brake fluid by increasing boiling points and moisture absorption. However, scientific research has not conclusively proven BVO's benefits in brake fluids. Studies show BVO does not significantly outperform conventional fluids. The American Chemical Society and others state more research is needed to evaluate long-term effects.

Specifications and Maintenance of Dot 2 Brake Fluid

Here are the specifications of the DOT 2 brake fluid:

• Viscosity: It is an important property of all hydraulic fluids. It is because, during the brake system's operation, the fluid temperature rises due to the heat generated when braking. The increase in temperature causes the fluid's viscosity to change, affecting its flow and the braking system's effectiveness. Therefore, DOT 2 brake fluid has a low viscosity at high temperatures and a stable viscosity in the system's temperature range. This ensures the fluid's steady supply to all brake system parts and maintains the required pressure, making it possible for the braking system to function efficiently. The viscosity of DOT 2 brake fluid is 800-1200 cP at 100°C and 600-900 cP at 38°C.
• Freezing temperature: The freezing temperature of DOT 2 brake fluid is -40°C. The low freezing temperature is vital for the fluid's operation in cold climates and ensures that the fluid's properties do not change with temperature drops.
• pH: This specification is essential because it impacts the brake fluid's compatibility with other materials. The pH of DOT 2 brake fluid is 7.5-10.5, which indicates that the fluid is neutral or slightly alkaline and has no corrosive effect on the brake system's metal parts.
• Electrical conductivity: The electrical conductivity of DOT 2 brake fluid is very low (less than 1 µS/cm). It is essential because it is a dielectric fluid, and its electrical conductivity is minimal, preventing short circuits in the electrical components of modern vehicles.

There is a need for regular maintenance of the brake system to ensure its efficient operation. Here are some tips for maintaining the DOT 2 brake fluid:

• 1. Choose a quality brake fluid that meets the requirements of the vehicle's brake system.
• 2. Replace the brake fluid every two years, even if the vehicle owner has not driven many kilometers. During this time, the fluid absorbs moisture, which can lower the boiling point and reduce the braking system's efficiency.
• 3. Do not allow the brake fluid to get dirty during maintenance work. Contaminated brake fluid can damage the brake system's components.
• 4. During maintenance of the brake system, ensure that the moisture content of the brake fluid does not exceed 3.5 wt%.

How to Choose Dot 2 Brake Fluid

Before buying any brake fluid, it is important to understand the various types and their characteristics. There are two main types of brake fluids: DOT 2 and non-DOT. Non-DOT brake fluids are not very common. Customers might not be aware of them. It would be better to start with DOT 2 brake fluids.

When buying a brake fluid for resale, always check the packaging for the manufacturer's recommendations. Most manufacturers recommend using only DOT 3, 4, and 5.1 fluids in most cars unless the fluid is changed during maintenance. Check what the local market uses. If most cars use DOT 3, 4, and 5.1 fluids, then it would be a wise idea to stock up on those fluids.

Choose a reputable brand. There are many known and trustworthy brands out there. Customers will be looking for fluids from brands they recognize. It might be a good idea to contact suppliers and ask for product catalogs. Many suppliers offer discounts on the first order, so it might be a good idea to place a sample order.

Another important factor to consider is the color of the brake fluid. Most people are used to seeing light amber to clear yellow fluids. They might be put off by colored fluids. Although colored fluids are not harmful, they can cause a brake system failure if used in a incompatible system.

How to DIY and Replace DOT 2 Brake Fluid

Replacing brake fluid is a straightforward process that can be done with basic tools and mechanical knowledge. Here's a step-by-step guide on how to replace brake fluid:

• Tools and Materials Required
• New brake fluid (DOT 2)
• Wrench for bleeder valves
• Brake bleeder kit or hose
• Brake fluid reservoir
• Jack and jack stands or ramps
• Wheel lug nut wrench
• Gloves and safety glasses
• Clean rag or paper towel

Step-by-Step Guide

• 1. Preparation:

Park the vehicle on a level surface and engage the parking brake. Wear gloves and safety glasses to protect against brake fluid.

• 2. Lift the Vehicle:

Use a jack to lift the vehicle and secure it with jack stands or ramps. Remove the wheel lug nut covers, then loosen the lug nuts. Raise the vehicle and remove the wheels to access the brake components.

• 3. Locate the Brake Fluid Reservoir:

Find the brake fluid reservoir, usually located near the brake master cylinder. Clean the area around the reservoir to prevent contamination.

• 4. Remove Old Fluid:

Use a syringe or turkey baster to remove as much old fluid as possible from the reservoir. Dispose of the old fluid according to local regulations.

• 5. Add New Fluid:

Pour new brake fluid (DOT 2) into the reservoir, ensuring it meets the manufacturer's specifications. Do not overfill.

• 6. Bleed the Brakes:

Connect a brake bleeder kit or a rubber hose to the bleeder valve on one wheel brake caliper. Place the other end of the hose into a container to catch old fluid. Open the bleeder valve and pump the brake pedal several times while holding the valve open. Close the valve and release the pedal. Repeat this process on all four wheels, starting with the wheel farthest from the brake master cylinder.

• 7. Check Fluid Level:

After bleeding, check the fluid level in the brake calipers and the reservoir. Add more fluid if necessary to maintain the correct level.

• 8. Reassemble:

Reattach the wheels and lower the vehicle. Tighten the lug nuts in a crisscross pattern and torque them to the manufacturer's specifications.

• 9. Test the Brakes:

Before driving, test the brakes by pressing the pedal to ensure a firm feel. Drive at low speeds and test the brakes to ensure proper operation.

Q and A

Q1: Is it necessary to change brake fluid?

A1: Yes, it is essential. Over time, brake fluid can absorb moisture, which reduces its effectiveness. Regularly changing the brake fluid ensures the braking system's reliability and safety.

Q2: How often should brake fluid be changed?

A2: The general recommendation is to change brake fluid every two years. However, this can vary depending on the vehicle and brake fluid type. Always check the manufacturer's guidelines.

Q3: Can anyone change the brake fluid themselves?

A3: Yes, but following the correct procedure is essential if one needs to be more familiar with the braking system. It's always best to have a professional mechanic change the brake fluid to ensure the correct process is followed.

Q4: What is DOT brake fluid?

A4: DOT brake fluid is a standard set by the US Department of Transportation. It indicates the brake fluid's performance level and ensures compatibility with most vehicles' braking systems.

Q5: Is all brake fluid the same?

A5: No, there are different types of brake fluids for different vehicles. It's essential to use the type recommended by the vehicle manufacturer to ensure optimal brake system performance.