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Brake Fluid

Q:  What Brake Fluid should I use?

A:  The Department of Transportation specifies three common types of brake fluid: DOT 3, DOT 4 and DOT 5. DOT 3 and 4 are the preferred types for high-performance, high temperature use and are available in a very wide range of formulations and performance characteristics. DOT 3 fluids are usually less expensive than DOT 4 fluids and are not as capable in extreme use. DOT 5 is a silicon-based fluid, which is not good for high temperature use because it expands, becomes compressible, and makes your pedal soft and spongy. DOT 5 is inert and it is not corrosive which makes it good for preserving classic cars because it doesn’t take your paint off in the event of accidental spillage or leaks.

Wilwood has versions of each DOT fluid engineered to the specific needs of our customers. Wilwood Hi-Temp is the maximum performance DOT 3 fluid at a cost effective price. Wilwood EXP DOT 4 fluid is the highest temperature, highest performance, lowest compressibility brake fluid you can buy. Our DOT 5 fluid is formulated to protect your classic vehicle and give reliable brake performance.

Wilwood Engineering, Inc
4700 Calle Bolero
Camarillo, CA 93012
Phone: (805) 388-1188
Fax: (805) 388-4938

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