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BOSCH ESI6-32N Brake Fluid (Direct Replacement for DOT 3, DOT 4, and DOT 5.1) - 1 Quart

4.8 4.8 out of 5 stars 3,198 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Brake Fluids by BOSCH

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Purchase options and add-ons

Brand BOSCH
Auto Part Position Rear
Vehicle Service Type Truck

About this item

  • High compatibility. Use with or direct replacement for DOT 3, DOT 4, and DOT 5. 1
  • Extended Service Interval (ESI): Lasts 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5. 1
  • Exceeds all DOT 3, DOT 4, and DOT 5. 1 standards
  • Wet boiling point ~ 365 DegreeF/Viscosity at -40 DegreeC ~ 685mm2/s
  • Standard brake fluid has a recommended change interval of 2 years. The recommended change interval for Bosch ESI6 is 3 years.
  • Fit Type: Universal Fit
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Designed to improve your life

  • Bosch ESI6 is the next generation brake fluid. It exceeds all current DOT standard requirements (FMVSS 116)
  • First to simultaneously combine both low viscosity and high wet boiling point at its operation
  • ESI coverage includes the majority of all brake systems launched since 1990; Use with DOT 3, DOT 4, or DOT 5.1; Coverage excludes DOT 5 silicone based brake fluid which is limited to military and racing applications
  • Excellent lubricity properties to prevent wear of components in the brake system and reduce noise
  • Longer lasting: 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5.1 (with 30% lower viscosity)
  • Wet boiling point ~ 360 DegreeF/Viscosity at -40 DegreeC ~ 685mm2/s

Disclaimer: 75 FR 5553, National Highway Traffic Safety Administration (NHTSA), 2010

WHY YOU NEED IT

Noise Reducing

Car driving down long road

Happy driver

NOISE REDUCING

Excellent lubricity properties to prevent wear of components in the brake system and reduce noise

LONG LASTING

Longer lasting: 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5.1 (with 30% lower viscosity)

EXCEEDING STANDARDS

Bosch ESI6 is the next generation brake fluid. It exceeds all current DOT standard requirements (FMVSS 116)

Fluid

Lab testing
ESI6 is subject to chemical testing in the development center laboratory

ESI6 contributes to the high performance and service life of modern brake systems with its high dynamic properties.

For over two years, it has undergone sophisticated testing geared towards new versions of ABS and ESP systems in our Bosch development center in Abstatt, Germany

High-tech laboratory continuous-operation test benches

ESI6 brake fluid has been subject to intense testing of both system pressure build-up and wear and noise at extreme temperatures

BOSCH BRAKE FLUID: WHY CHOOSE OUR PRODUCT

Right from the development stage, modern brake fluids such as Bosch ESI6 are designed to cope with the demands of current and future ESP systems

  • High wet boiling point [°F ]: The higher the wet boiling point, the lower the risk of formation of vapor bubbles – the main cause of brake failure.
  • Viscosity [mm²/s] : The lower the viscosity, the faster response times of ESP. The higher the wet boiling point, the lower the risk of formation of vapor bubbles – the main cause of brake failure.

High lubricity, less corrosion and wear – the advantages of ESI6:

  • One size fits all: As Bosch ESI6 can be used to substitute almost any brake system launched since 1990
  • Bosch ESI6 reduces corrosion
  • Bosch ESI6 helps reduce the stock of brake fluids thus saving storage space
  • Featuring replacement intervals of 3 years
DOT Chart

Product Description

Bosch ESI6 is the next generation brake fluid designed for today's modern braking systems. Designed by the industry's leader in braking technology for vehicles using DOT 3, DOT 4, and DOT 5. 1. brake fluids. WARNING: This product can expose you to chemicals including Ethylene Oxide, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www. P65Warnings. ca. gov.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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BOSCH ESI6-32N Brake Fluid (Direct Replacement for DOT 3, DOT 4, and DOT 5.1) - 1 Quart


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What's in the box

  • Brake Fluid
  • Looking for specific info?

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    3,198 global ratings

    Customers say

    Customers like the brake fluid's responsiveness, durability, value, and pedal strength. They mention that it provides a firmer pedal and that it works well. They are also happy with the fluid, quality, and boiling point.

    AI-generated from the text of customer reviews

    85 customers mention85 positive0 negative

    Customers are satisfied with the quality of the brake fluid. They mention that it's a top of the line product, and is known for its quality. They also say that it lasts longer and resists brake fade better than cheap fluids. Customers also say it'll withstand autocross and track abuses.

    "Great product. Used in clutch cylinder on my bike. Confident in the brand." Read more

    "...It's more durable, it has better temperature performance, and best of all it can fit any vehicle with recommended Dot 3, 4 or 5.1 fluid...." Read more

    "I liked that it’s a upgrade for my cars braking system . I used it on a 2013 GMC slt terrain." Read more

    "Works well in all my vehicles from motorcycles to tractors and even the 87 year old Dodge." Read more

    56 customers mention45 positive11 negative

    Customers like the value of the brake fluid. They say it has an excellent price and is not too expensive.

    "...it does it is certainly functional and relatively inexpensive...." Read more

    "...This was less than half the cost and they give you a 500 mil container. I put this in my motive extractor. Worked like a charm...." Read more

    "...On top of all that, the price cant be beat!! Bosch never misses!" Read more

    "...the lubricity and high-specs are nice to have, especially for the reasonable price." Read more

    47 customers mention47 positive0 negative

    Customers are satisfied with the performance of the brake fluid. They mention that it works well, produces excellent results, and is suitable for amateurs. Some say that it also works well as clutch fluid.

    "...isn't "OEM" (per se for the perfectionists), it does it is certainly functional and relatively inexpensive...." Read more

    "...I put this in my motive extractor. Worked like a charm. I had to buy the adapter this time around for my Subaru...." Read more

    "...Consistent stopping distance.Excellent performance during both hard and gentle braking.No change in pedal feel after long trips...." Read more

    "...I know the ABS works very well on these Camrys as one time a couple of years ago I had to brake with my old worn out tires on a rainy day, and I..." Read more

    22 customers mention19 positive3 negative

    Customers like the brake fluid. They say it's a great fluid in a metal can, perfect brake fluid, and it has low viscosity. It has high boiling points and is less hydroscopic than other brake fluids. Customers also mention that it pours perfectly from the can and is easier to pour from than a plastic bottle.

    "Good fluid, for the balance between LV and high wet boiling point..." Read more

    "Specs look amazing. What more could anyone ask for when you get low viscosity, high boiling points and less hydroscopic?..." Read more

    "Nothing to dislike, good size container in a can. Pours perfectly from the can. Used it to change fluid on 2 cars." Read more

    "...dry boiling points of all fluids (besides racing fluids), and ULTRA LOW viscosity. On top of all that, the price cant be beat!! Bosch never misses!" Read more

    19 customers mention19 positive0 negative

    Customers are satisfied with the boiling point of the brake fluid. They mention that it has a really high boiling point and extremely long service interval. Additionally, customers say that it maintains high wet boiling temps for street use, and is an awesome high temperature brake fluid with a 3 year life. They also say that the fluid is more durable, has better temperature performance, and has higher heat resistance than DOT 5.1. Overall, customers are happy with the product's boiling point.

    "...It's more durable, it has better temperature performance, and best of all it can fit any vehicle with recommended Dot 3, 4 or 5.1 fluid...." Read more

    "...This is one of the few Dot 5.1s that maintain high wet boiling temps for street use...." Read more

    "...What more could anyone ask for when you get low viscosity, high boiling points and less hydroscopic?..." Read more

    "...5.1 has high dry and wet boil temp, and a much longer life span between changes than 4...." Read more

    18 customers mention16 positive2 negative

    Customers like the pedal strength of the brake fluid. They mention that it improves braking and feel, provides a firmer pedal, and keeps their brakes feeling responsive. The lubricity and high-specs are nice to have, and it tightens up brakes significantly. The pedal never went soft, and the brakes are still tight.

    "...No change in pedal feel after long trips.Evenly matched braking pressure along each axle...." Read more

    "...more expensive than other brake fluid but it seems to me it provides a firmer pedal both on initial brake pedal application and also when you get..." Read more

    "...we'll never need the high performance aspect of this fluid, but the lubricity and high-specs are nice to have, especially for the reasonable price." Read more

    "...My brake response is very nice and it keeps my brakes feeling responsive. I doubt I will ever trust anything else in the near future." Read more

    11 customers mention11 positive0 negative

    Customers are satisfied with the durability of the brake fluid. They mention that it has a much longer life span between changes than other lesser fluids, and it extends the life of hydraulic brake components. They also appreciate that it lasts longer than other fluids and that it allows them to go longer between replacements.

    "...5.1 has high dry and wet boil temp, and a much longer life span between changes than 4...." Read more

    "3 year life, the highest wet and dry boiling points of all fluids (besides racing fluids), and ULTRA LOW viscosity...." Read more

    "...It's also nice that it lasts longer than other lesser fluids, allowing you to go longer between change intervals, which again reduces its overall..." Read more

    "...Use it in all my cars, bikes and ATVs. They also claim it lasts 5 years so that adds peace of mind...." Read more

    10 customers mention10 positive0 negative

    Customers say the brake fluid is very responsive, with good brake performance. They also mention that the brake pedal is very sensitive, and the car decelerated very rapidly. Customers also say that the fluid is the highest performance brake fluid one can buy for the money, and that it makes their truck stop smoother, quicker, and stronger.

    "...It was a very stable deceleration with absolutely no issues. ABS must have been activated as otherwise the car would have slipped...." Read more

    "...delivered to my door promptly.I will have Superior brake performance for an extended period of time with Bosch brake fluid...." Read more

    "...My brake response is very nice and it keeps my brakes feeling responsive. I doubt I will ever trust anything else in the near future." Read more

    "...the brake now feels better in terms of stopping power and paddle responsiveness...." Read more

    Flush and refill every 2 Or 3 Years.
    5 Stars
    Flush and refill every 2 Or 3 Years.
    Recent findings conducted by the National Car Care Council revealed that 86 percent of the cars they randomly checked during state vehicle inspections, had at least one item that would cause the car to fail. Fifteen percent of these cars had low, contaminated or worn-out brake fluid. To put this another way, more than one in every 10 cars you are traveling with along city streets and highways has the potential of a brake failure due to brake fluid issues.Brake fluid is the key ingredient in any hydraulic braking system. The fluid is not only subjected to hundreds of pounds of pressure on many occasions during your drive, it is also a lubricant for the rubber components in your master cylinder, wheel cylinders, calipers and hoses. Additionally, brake fluid has corrosion inhibitors that keep the bores of hydraulic cylinders from rusting and pitting.Many of today’s brake fluids are made of polyalkylene glycol which is hygroscopic, meaning it absorbs moisture. This can be a good thing and a bad thing. The absorption of water promotes dispersal throughout the braking system and prevents “pooling” of the absorbed water in low-lying areas of the brake system where corrosive acids can form and make the components deteriorate at a faster rate. Water in a brake system will also freeze or boil faster than the fluid. Hygroscopic properties can be a bad thing, though, because the fluid will actually draw moisture through porous metal surfaces if the fluid has lost its corrosion-preventative abilities.Used fluid, when tested with chemical test strips, can sometimes contain up to 8-10% water contaminants after several years of use. Changing of the fluid whenever a brake component is being replaced is always recommended but seldom done, especially if you are fixing the car in your driveway or garage. Most service shops will recommend a flush and refill be done; however, cost-conscious consumers may opt against this for sake of saving some money on the total bill. A quick search through your owner’s manual will find a recommended service interval of roughly every three years that a flush and refill should be done.When replacing brake fluid, there are several different types to choose from. The easiest way to determine which fluid your car requires is by consulting your owner's manual, or by locating the specification stamped on the master cylinder reservoir. Most American-made cars used DOT 3 brake fluid until the mid-1990s. DOT 3 brake fluid has a dry boiling point of 284 degrees, which is fine for brake systems with large brake drums and thick disc brake rotors, where brake heat can be easily dispersed. It has a viscosity of roughly 1500 at -40 F.DOT 4 was used by many British or European cars and is also a poly-glycol base. DOT 4 absorbs less moisture than the DOT 3 fluid, and many enthusiasts have converted their hydraulic brake systems from DOT 3 or DOT 4 for this reason. Changing the fluid is not all that is involved in this conversion, though. To prevent cross contamination you should also change all the rubber components in the brake system. All steel lines and brake hoses need to be flushed, too. DOT 4 has a boiling point of 311 degrees F., and it is rated at a viscosity of 1800 at -40 F.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. Newer brake rotors tend to be smaller and thinner, which means they disperse heat a lot less efficiently. Also, DOT 5 does not absorb any moisture. DOT 5 will not harm painted surfaces and acts as a weather barrier for your brake system, preventing rust. DOT 5 can be used as an upgrade or replacement for both DOT 3 and 4, but should not be mixed with any of the other fluids. The procedures to convert your DOT 3 or 4 systems to the silicone-based DOT 5 are similar to the Dot 4 conversion procedure mentioned above. Silicone-based brake systems tend to be more difficult to bleed, but once this is accomplished, a DOT 5-filled system will resist rust better and last longer than the other formulations. Silicone brake fluid is also much lighter in cold temperatures, only about 900 weight at -40 F.A new formulation has recently been developed called DOT 5.1. This fluid is identical to DOT 5 silicone in both boiling point and viscosity; however, it is compatible in the poly-glycol based systems and anti-lock brakes as well. DOT 5.1 can be used in place of either of the poly-glycol-based fluids even though it has half the viscosity of DOT 3 or DOT 4 fluid. In fact, DOT 5.1 can be intermixed with the other non-silicone based fluids.Many imports also require special brake fluids be used, so as not to void original equipment vehicle warranties. Pre-2005 Audis and VWs use a Super Dot 4 that is light yellow in color and has a boiling point of 509 degrees F. This fluid was also OE-specified fluid for BMW until mid-2002, and all new Land Rover, Jaguar, Volvo, Porsche and Mercedes. Audi and VWs after 2005 use a low viscosity type DOT 4 LV that is yellow in color and has the same boiling point as Super DOT 4. The LV formulation is also used exclusively on Mini, Saab and BMWs built after mid-2002. Both of these import-specific fluids are available from the manufacturer Pentosin (as well as others) and sold at many dealerships and retailers, but they are not necessarily out front on the shelf with the other more common DOT fluids.Amazon why do you ship food with brake fluid?
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    TRJ
    4.0 out of 5 stars Cans WILL come dented, but the fluid's good stuff
    Reviewed in the United States on October 20, 2023
    Good fluid, for the balance between LV and high wet boiling point (other DOT4 fluids are higher wet boiling, but viscosity of DOT4, this is similar viscosity at -40c as the LV fluids (SL.6, etc.), but has a higher wet boiling point. About the same cost as the rest of... (Amazon cut off the rest for using the word 'h**l')

    The shipping of this item just sucks!
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    Reviewed in the United States on April 3, 2021
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    JVK
    5.0 out of 5 stars Flush and refill every 2 Or 3 Years.
    Reviewed in the United States on April 3, 2021
    Recent findings conducted by the National Car Care Council revealed that 86 percent of the cars they randomly checked during state vehicle inspections, had at least one item that would cause the car to fail. Fifteen percent of these cars had low, contaminated or worn-out brake fluid. To put this another way, more than one in every 10 cars you are traveling with along city streets and highways has the potential of a brake failure due to brake fluid issues.Brake fluid is the key ingredient in any hydraulic braking system. The fluid is not only subjected to hundreds of pounds of pressure on many occasions during your drive, it is also a lubricant for the rubber components in your master cylinder, wheel cylinders, calipers and hoses. Additionally, brake fluid has corrosion inhibitors that keep the bores of hydraulic cylinders from rusting and pitting.
    Many of today’s brake fluids are made of polyalkylene glycol which is hygroscopic, meaning it absorbs moisture. This can be a good thing and a bad thing. The absorption of water promotes dispersal throughout the braking system and prevents “pooling” of the absorbed water in low-lying areas of the brake system where corrosive acids can form and make the components deteriorate at a faster rate. Water in a brake system will also freeze or boil faster than the fluid. Hygroscopic properties can be a bad thing, though, because the fluid will actually draw moisture through porous metal surfaces if the fluid has lost its corrosion-preventative abilities.Used fluid, when tested with chemical test strips, can sometimes contain up to 8-10% water contaminants after several years of use. Changing of the fluid whenever a brake component is being replaced is always recommended but seldom done, especially if you are fixing the car in your driveway or garage. Most service shops will recommend a flush and refill be done; however, cost-conscious consumers may opt against this for sake of saving some money on the total bill. A quick search through your owner’s manual will find a recommended service interval of roughly every three years that a flush and refill should be done.
    When replacing brake fluid, there are several different types to choose from. The easiest way to determine which fluid your car requires is by consulting your owner's manual, or by locating the specification stamped on the master cylinder reservoir. Most American-made cars used DOT 3 brake fluid until the mid-1990s. DOT 3 brake fluid has a dry boiling point of 284 degrees, which is fine for brake systems with large brake drums and thick disc brake rotors, where brake heat can be easily dispersed. It has a viscosity of roughly 1500 at -40 F.DOT 4 was used by many British or European cars and is also a poly-glycol base. DOT 4 absorbs less moisture than the DOT 3 fluid, and many enthusiasts have converted their hydraulic brake systems from DOT 3 or DOT 4 for this reason. Changing the fluid is not all that is involved in this conversion, though. To prevent cross contamination you should also change all the rubber components in the brake system. All steel lines and brake hoses need to be flushed, too. DOT 4 has a boiling point of 311 degrees F., and it is rated at a viscosity of 1800 at -40 F.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. Newer brake rotors tend to be smaller and thinner, which means they disperse heat a lot less efficiently. Also, DOT 5 does not absorb any moisture. DOT 5 will not harm painted surfaces and acts as a weather barrier for your brake system, preventing rust. DOT 5 can be used as an upgrade or replacement for both DOT 3 and 4, but should not be mixed with any of the other fluids. The procedures to convert your DOT 3 or 4 systems to the silicone-based DOT 5 are similar to the Dot 4 conversion procedure mentioned above. Silicone-based brake systems tend to be more difficult to bleed, but once this is accomplished, a DOT 5-filled system will resist rust better and last longer than the other formulations. Silicone brake fluid is also much lighter in cold temperatures, only about 900 weight at -40 F.
    A new formulation has recently been developed called DOT 5.1. This fluid is identical to DOT 5 silicone in both boiling point and viscosity; however, it is compatible in the poly-glycol based systems and anti-lock brakes as well. DOT 5.1 can be used in place of either of the poly-glycol-based fluids even though it has half the viscosity of DOT 3 or DOT 4 fluid. In fact, DOT 5.1 can be intermixed with the other non-silicone based fluids.Many imports also require special brake fluids be used, so as not to void original equipment vehicle warranties. Pre-2005 Audis and VWs use a Super Dot 4 that is light yellow in color and has a boiling point of 509 degrees F. This fluid was also OE-specified fluid for BMW until mid-2002, and all new Land Rover, Jaguar, Volvo, Porsche and Mercedes. Audi and VWs after 2005 use a low viscosity type DOT 4 LV that is yellow in color and has the same boiling point as Super DOT 4. The LV formulation is also used exclusively on Mini, Saab and BMWs built after mid-2002. Both of these import-specific fluids are available from the manufacturer Pentosin (as well as others) and sold at many dealerships and retailers, but they are not necessarily out front on the shelf with the other more common DOT fluids.

    Amazon why do you ship food with brake fluid?
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    51 people found this helpful
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    Reviewed in the United States on December 13, 2023
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