ATE Super Blue Brake fluid use - BMW Luxury Touring Community
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post #1 of 2 Old Apr 20th, 2014, 3:53 pm Thread Starter
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ATE Super Blue Brake fluid use

Has anyone used the ATE Super Blue Brake fluid in their K1200LT ? I know it was banned by the US as not DOT approved due to blue dye. They also have amber colored that has same boiling points. So same fluid without dye. Supposed to have longer life.

Thanks fellows,

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84 Yamaha Venture Royal -departed
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post #2 of 2 Old Apr 21st, 2014, 8:05 am
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Re: ATE Super Blue Brake fluid use

Whether the color is blue or amber makes no difference to the brake fluid, what counts is the DOT classification. ATE Super Blue is DOT4 , which means it has higher dry and wet boiling points than a typical DOT3 fluid. But DOT4 also has lower moisture holding capacity than DOT3. The moisture capacity is probably the most important factor in determining the life of the brake fluid. Lower moisture capacity means shorter life. This article explains it nicely:

Whether you use DOT3 or DOT4 will make no difference to the braking performance for road use, and since they are chemically compatible either one may be used to top up the other without ruining anything. It is however always best to top up with the same fluid.

Bottom line, use DOT3 or DOT4 from whatever supplier you prefer but change it regularly. In the LT annually seems to be a good idea to increase the life of the ABS modulator.

André Strydom
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