WHAT IS THE DIFFERENCE BETWEEN DOT 3 AND DOT 4 ...

2000 Volkswagen Beetle

Tiny

Anonymous

October, 29, 2012 AT 1:28 PM

What is the difference between DOT 3 and Dot 4 brake fluid. Can they be mixed as I can't find Dot 4?

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2 Answers

Tiny

ASEMaster6371

October, 29, 2012 AT 1:32 PM

Its all about the boiling point. Dot 4 higher.

What does your car call for

Roy

Tiny

exovcds

October, 30, 2012 AT 2:06 AM

You can add dot 4 to a dot 3 system, but you can't add dot 3 to a dot 4 system.

Dot 4 is pretty standard and should be easily found at auto parts places or vw dealers.

You shouldn't have to add fluid to your reservoir. The only time the fluid should be low, is
if the brake pads have worn down or if there is a leak.

Have your brakes checked.

Thomas

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