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Old 08-03-2018, 05:37 PM   #1
FL71C10
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New Brake System - Dot3 or DOT4?

I am completely redoing the brake system in my truck from stem to stern. It's a 71 with factory discs up front, power brakes, nothing fancy.

What type of fluid should I use?
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Old 08-03-2018, 07:14 PM   #2
Steeveedee
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Re: New Brake System - Dot3 or DOT4?

DoT 3 is all you need. You can use the DoT 4. It has a higher boiling point, if that is a concern. I use DoT 3 in my truck, even when pulling a trailer (which has its own electric brakes).
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Old 08-03-2018, 09:49 PM   #3
VWNate1
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Post Brake Fluid Dot3 or DOT4?

Either will work but DOT is what disc brakes call for .

The main thing is to remember to fully flush and replace it every two or three (at most) years .
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Old 08-04-2018, 12:43 AM   #4
kwmech
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Re: New Brake System - Dot3 or DOT4?

I put DOT 4 in everything now-a days.
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