Can I take advantage of brake fluid DOT 5 with my new brake package?

Brake fluid DOT 5: Earlier than diving into brake fluid ideas, one clearly must have a primary understanding of what brake fluid truly is. An automotive braking system converts kinetic vitality into warmth in a bit to scale back car momentum. In trendy automobiles, brake fluid is used to create the stress that makes the brake pads and rotors work.

Brake fluid is a sort of hydraulic fluid that transfers power from the brake pedal to the brake caliper. The brake calipers then rub towards the rotor to scale back momentum. Braking power is instantly proportional to the power that the driving force has exerted on the brake pedal or lever.

To have the proper braking efficiency and response, it is rather necessary to have the right brake fluid. Having the fallacious brake fluid might lead to an extended stopping distance and even brake failure. Within the worst case, the pedal might have free play and regardless of miserable the pedal all the way in which, the car is not going to cease. Brake fluids are represented and categorized by their DOT classifications.

DOT stands for Division of Transportation, an company that defines {qualifications}. DOT classifications might be simplified with three properties: chemical, boiling level, and moisture retention over time.


KLONDIKE DOT 5.1 Common Artificial Brake Fluid has arrived and is offered from our supplier community throughout Canada. KLONDIKE DOT 5.1 Common Artificial Brake Fluid meets all brake fluid specs in the marketplace in a single fluid and can cut back stock and lead time for finish customers.

Really common brake fluid for world use

Very excessive boiling level for max efficiency

Exceeds all glycol primarily based brake fluid specs akin to Dot 3, 4, 4LV, 5.1, 5.1LV, EHV

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Obtainable in 500ml and 1L containers

Can I take advantage of DOT 5.1?

DOT 5.1 has very broad applicability and can be utilized with confidence in any brake system the place the usage of glycol ether fluid is specified. This contains state-of-the-art absolutely electrical and hybrid electrical automobiles the place low conductivity is crucial, in addition to high-performance European automobiles. It’s absolutely appropriate and may substitute or recharge methods that use DOT 4 and DOT 3 fluids.

Since DOT 4 and 5.1 are glycol-based brake fluids, they’re appropriate with one another, which suggests they are often simply blended with out damaging the system. of brakes. It is very important by no means confuse DOT 5.1 (glycol primarily based) with DOT 5 which is silicone primarily based and will by no means be blended with another DOT fluid. DOT 5 is used largely in traditional automobiles that stay in storage for lengthy intervals and want a brake fluid that doesn’t take up water.

Brake Fluid Comparability and Mixing

DOT 5.1 fluids are a growth of DOT 4 which not solely have larger boiling factors (and retain them even higher than DOT 4 in service) but in addition have a significantly better viscosity (thickness) at low temperatures. A part of the requirements that DOT fluid producers should meet are minimal dry and moist boiling factors. These are the minimal temperatures your brake fluid should function at earlier than the brake fluid begins to boil, which might result in full brake failure.

The necessities for brake fluids are outlined by some internationally acknowledged standardization organizations.

Can I take advantage of DOT 5 brake fluid with my new brake package?

The proprietor of a 55′ Ford Sedan simply despatched us a observe asking why we don’t suggest utilizing DOT 5 brake fluid with our brake kits. A few of you might be almost certainly asking the identical query, so this put up is designed to clear up the confusion across the several types of brake fluid.

When you head to your native auto components retailer, you’ll see all types of brake fluids within the aisle. DOT 3 is at all times probably the most economical choice: DOT 4 is roughly 50% dearer than DOT 3 and DOT 5 is roughly twice as costly as DOT 4. Some homeowners mistakenly assume that DOT 5’s larger price equates to higher efficiency , however this isn’t at all times the case. In reality, typically the precise reverse is true. To raised perceive why we don’t suggest DOT 5 for our brake kits, we have to take a crash course in chemistry.

Widespread brake fluids, akin to DOT 3, 4, and 5.1, are mixtures of glycols and glycol ethers, whereas DOT 5 is silicone-based. DOT 3, 4 and 5.1 are hygroscopic, which is a flowery means of claiming they take up water. We all know what you’re considering: brake line moisture is unhealthy! It’s true that we attempt to preserve our brake methods “dry,” however over time, even a buttoned-up brake system with tight seals and recent traces absorbs moisture. The important thing here’s what occurs to that moisture after it enters the system.

DOT 5 doesn’t take up moisture, so some folks assume it’s the best choice, however is it? Earlier than you run to the components counter, do not forget that whereas DOT 5 doesn’t take up water, it can’t/is not going to stop moisture from getting into the brake system. And since water is just not absorbed by DOT 5, moisture builds up and causes localized corrosion inside the brake system.

As enjoyable because it sounds, DOT 3, 4, and 5.1 take up moisture, which in flip eliminates puddling that may trigger corrosion. Extra importantly, when brake fluid will get sizzling, the water trapped contained in the brake traces (however not absorbed by the brake fluid) turns from a liquid to a vapor. Vapor is extra simply compressed than liquid. With this in thoughts, think about racing down the freeway at excessive pace and hitting the brakes. When the hydraulic system sends DOT 5 fluid by way of a vapor pocket within the line, that stress drop creates a mushy pedal.

Know the Distinction Between DOT3, DOT4, and DOT5 Brake Fluid

You depend on a superb brake system to soundly function nearly any powersports car, and for that brake system to work correctly, it have to be maintained with the right sort of fluid. of brakes. Failure to take care of the brake system or the usage of the fallacious sort of brake fluid might trigger the brake system to deteriorate and even fail unexpectedly.

To know brake fluid classifications, we’ve to say what brake fluid does. Autos with hydraulic brakes (versus cable-actuated brakes) use brake fluid to switch power from a brake pedal or brake lever to the brake caliper or wheel cylinder, which converts the power into stress. When the caliper or wheel cylinder places stress on the brake pad-rotor mixture, or the brake shoe-drum mixture, friction slows the car down.

That friction creates warmth, and that’s the place brake fluid scores come into play. The DOT (Division of Transportation) ranking for a selected brake fluid represents its boiling level temperature in levels Fahrenheit when dry or moist. Brake fluid with a DOT3 and DOT4 label comprises glycol, which attracts water. 

Over time, it’s regular for brake fluid to soak up a small quantity of moisture from the environment. The “moist” boiling level ranking is the temperature at which brake fluid boils with a moisture degree of about 4 p.c. As a result of it’s a fluid, brake fluid can’t be compressed; Once you step on the pedal or squeeze the lever, nearly all of that power is transformed into stopping energy. 

Nevertheless, if there’s water within the brake fluid and the brakes get sizzling sufficient to trigger the moisture to boil, the moisture turns right into a gasoline (vapour), which might be compressed. This may trigger brake management to really feel “mushy” and cut back braking efficiency. In an excessive case, the brake lever might go on to the handlebars. Moisture within the brake system can even trigger corrosion in brake calipers or brake cylinders, which might result in brake fluid leaks and different inconvenient issues.

Maintaining your brake fluid as “dry” as attainable is the rationale most car producers suggest altering your brake fluid on an everyday schedule. Examine your proprietor’s handbook or seek the advice of a service skilled for service intervals on your car’s brake system. Your proprietor’s handbook may also present you ways and when so as to add brake fluid to the grasp cylinder reservoir.

That degree can drop as new brake pads put on. Lastly, your proprietor’s handbook will let you know what sort of brake fluid is appropriate along with your car’s brake system. It is vitally necessary to make use of solely that sort of fluid when servicing the system or filling the reservoir. The required fluid sort is sort of at all times stamped on the reservoir cap as effectively.

DOT3, DOT4 and DOT5 Brake Fluids Defined

There are three brake fluids accessible in the marketplace for our normal automobiles. The vary will increase by way of efficiency in ascending order, which implies that DOT3 is probably the most primary and DOT5 is the delicate one with richer substances. Nevertheless, DOT4 is now the mainstream choice on our common automobiles.


DOT3 brake fluid is probably the most generic accessible in the marketplace. DOT3 brake fluid usually comprises about 80% glycol with different substances accounting for the rest. DOT3 brake fluid is normally yellow in coloration. There aren’t any secure requirements for DOT3 or another brake fluid, and boiling factors range from model to model. Merely put, DOT3 fluid usually has a dry boiling level of 205 levels Celsius and a moist boiling level of 140 levels Celsius. The moist boiling level is taken into consideration when the fluid has gained moisture over time. Nevertheless, DOT3 positive factors much less moisture with respect to time, over DOT4 fluid.

DOT4 brakes

DOT4 brake fluid is now utilized in most of our automobiles. It bridges the hole between DOT3 and DOT4 by providing the qualities of the opposite two fluids at an reasonably priced price. Speaking about substances used, DOT4 brake fluid contains round 50-65% glycol ether base with round 20-40% borate ester base. DOT4 brake fluid has larger boiling factors than DOT3, 230 levels Celsius for dry and 155 levels Celsius for moist. Talking of properties, DOT4 positive factors moisture sooner than DOT3 however has a excessive boiling level for each dry and moist situations. Subsequently, it affords extra dependable stopping energy however requires a sooner fluid change.

DOT5 brakes

DOT5 brake fluid is utilized in high-grade automobiles which are primarily constructed to cope with high-intensity situations. DOT5 is a completely artificial silicone primarily based brake fluid that doesn’t include moisture over time. Affords extra compressibility than DOT3 and DOT4 brake fluids. DOT5 brake fluid additionally has the next boiling level of 260 levels Celsius dry and 180 levels Celsius moist.

As a result of it doesn’t include moisture, it’s the most dependable brake fluid and affords glorious braking efficiency with an extended substitute life. Nevertheless, some manufacturers now additionally provide absolutely artificial DOT4 brake fluids that supply even larger boiling factors than DOT5, making them extra preferable for highway use.

When you discover this put up about brake fluid DOT 5 useful to you and also you need to know extra about automobile fluid data, please verify extra on our web site Auto Oil And Fluid. Thanks on your curiosity!