Distinguish Between the Dot 3 and Dot 4 Brake Fluid

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Distinguish Between the Dot 3 and Dot 4 Brake
Fluid
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The brake fluid is the important component of
the braking system which is responsible for
slowing down the car when you press on the brake
pedal.
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Generally, the brake fluids are causing the
pistons in the braking system to compress the
rotors to slow down the car.
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If you found air bubbles in the brake fluid, then
immediately press down the brake pedal.
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When the brake fluid of the car is overheated,
then your car won't respond when you press the
brake pedal.
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Here the points distinguish between the dot 3
and dot 4 brake fluids used in your car.
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Chemical components
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The Dot 3 brake fluids are made from the mixture
of ether and polyalkene glycol to handle the wet
conditions and average heated conditions of the
brake.
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But the Dot 4 brake fluids are made from the
mixture of borate and glycol that makes the brake
fluid more stable to handle the higher
temperature.
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Boiling capacity
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The Dot 3 braking fluid of your car contains
both the wet and dry boiling capacity. When the
fluid exposed to water and open air, it will flow
much faster.
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On the other hand, the Dot 4 braking fluid is
flow in an effective way when it comes to a dry
boiling capacity.
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Types of car
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Most of the cars will use the Dot 3 fluid
because the driver press the brakes smoothly and
very precisely.
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But the Dot 4 brake fluids are used in racing
car and police cars because the divers press the
brakes frequently and aggressively.
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Boiling point
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As compared to the Dot 4 brake fluid, the Dot 3
brake fluids have higher boiling points, so it
cannot be used for heavy braking.
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But the Dot 4 brake fluid is more reliable
because it doesn't boil as easily and regularly
used for doing a lot of heavy braking.
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Conclusion
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If you noticed that you put a wrong brake fluid
in your car, the first thing you need to do is
take the car to the nearest auto body shop.
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The auto body shop drain the fluid from your car
and diagnose the braking system to see if any of
its components were damaged due to the wrong
brake fluid.
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Thank You
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