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> DOT5. What does it do to regular brake seals, etc?, Do you need anything special to use it?
RoadGlue
post Jul 7 2006, 01:15 PM
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I ask, because my recently aquired 914 has DOT 5 brake fluid, but I don't know what, if any provisions have been made to the car to use it. I know a rear caliper was recently replaced with an off the shelf used caliper with stock seals.

I'd like to go back to using Super Blue. Is a flush in order, or would I be looking at a complete brake system overhaul?

Thanks!
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lapuwali
post Jul 7 2006, 02:02 PM
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It's 5.1, not 5.2. DOT5 is silicone-based fluid. DOT5.1 is not.

I pretty much agree with Dave. Any silicone fluid in the system will react badly with non-silicone fluid, making this whitish goo that likes to ball up and block passages.

You might try draining a sample from the system into a cup, and add some of your favorite fluid, to see what happens.
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RoadGlue
post Jul 7 2006, 02:40 PM
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QUOTE(lapuwali @ Jul 7 2006, 01:02 PM) *

It's 5.1, not 5.2. DOT5 is silicone-based fluid. DOT5.1 is not.

I pretty much agree with Dave. Any silicone fluid in the system will react badly with non-silicone fluid, making this whitish goo that likes to ball up and block passages.

You might try draining a sample from the system into a cup, and add some of your favorite fluid, to see what happens.


Sorry, I should have been clearer. I've been told that the car has silicone fluid in it now. I'd like to ditch that and go with ATE's 5.1 (right?) as I have two full, unopened containers sitting on my garage's floor.

I'll see how the two react, good suggestion. So what do I do if they react poorly? Power flush?

Thank a lot!
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Posts in this topic
RoadGlue   DOT5. What does it do to regular brake seals, etc?   Jul 7 2006, 01:15 PM
Dave_Darling   Which DOT-5 fluid? Silicone fluid, or the "D...   Jul 7 2006, 01:34 PM
lapuwali   It's 5.1, not 5.2. DOT5 is silicone-based flu...   Jul 7 2006, 02:02 PM
RoadGlue  
 

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