If your vehicle uses some of DOT 3, DOT 4, DOT 5 or DOT 5.1 brake fluid type, then is not recommended to be added or to be replaced with DOT 2 oil-based type of brake fluid.
Also, generally the seals used in DOT 5 brake system are not compatible with other glycol-ether based brake fluids. Silicone based DOT 5 is not compatible and should not be mixed with any of DOT 3, DOT 4, or DOT 5.1, because, mixing of glycol with silicone fluid may cause corrosion as a result of trapped moisture. For example, DOT 3 can be replaced with DOT 4 or DOT 5.1, as well DOT 4 can be replaced with DOT 5.1. It must be of the same type or of the same rating at least. Typically DOT 3, DOT 4 and DOT 5.1 brake fluids, generally are compatible with most brake system materials except in the case of some silicone rubber external components such as caliper piston boots, which are attacked by silicone fluids and greases.īrake fluids with different DOT ratings cannot always be mixed or replaced. Brake Fluid CompatibilityĬompatibility is determined by chemical characteristics of the fluid, so the brake system materials must be compatible with the used brake fluid.
It has the lowest wet and dry boiling points of all the brake fluid types. Also, another not widely used in the automotive industry is DOT 2 oil-based brake fluid.
In some rare cases, can be used silicone based fluids marked as DOT 5. The most common brake fluids, which are used today, are glycol-ether based, marked as DOT 3, DOT 4 and DOT 5.1. Brake fluid is used in hydraulic brake and hydraulic operated clutch as a hydraulic fluid to transfer force into pressure, as well to amplify braking force in motor vehicle hydraulic brake systems or amplify pushing force at clutch hydraulic systems.īrake fluids must have certain characteristics and meet certain quality standards for the braking system such as SAE International or US DOT (Department of Transportation).
0 kommentar(er)
