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- - Brake fluid (https://www.the75andztclub.co.uk/forum/showthread.php?t=215285)

davidcarp

2nd May 2015 11:44

Brake fluid

My brake fluid needs topping up. What is the recommended brand and spec?Thanks

marinabrian

2nd May 2015 11:47

Quote:

Originally Posted by davidcarp (Post 1990430)

My brake fluid needs topping up. What is the recommended brand? Thanks

Any DOT4 fluid will suffice, however I rather think if not a leak somewhere, your brake pads will be fairly worn, as when the pads wear the fluid level drops in the reservoir, which when new pads are fitted will restore the level ;)

Brian :D

RodgerD

2nd May 2015 11:48

Brand is not important, specification is. Look for DOT4

davidcarp

2nd May 2015 12:00

Quote:

Originally Posted by marinabrian (Post 1990437)

Only dropped by a small amount but Ill keep an eye out. Service and MOT end of June

raykay

2nd May 2015 12:12

DOT 4 or DOT 5.1 are both Polyethylene-Glycol based and either can safely be used.

Do not use DOT 5 as that is Silicone based and is not compatible with DOT 4 or DOT 5.1

bl52krz

2nd May 2015 18:02

If dot4 and dot5.1 are the same? Why have they got different numbers? Surely the spec is different?

raykay

2nd May 2015 18:18

Quote:

Originally Posted by bl52krz (Post 1990717)

If dot4 and dot5.1 are the same? Why have they got different numbers? Surely the spec is different?

The specification is different, DOT 5.1 has a higher boiling point than DOT 4, but they are both based on the same compound - Polyethylene-Glycol.

T-Cut

2nd May 2015 19:07

The detail for anyone interested.

http://www.epicbleedsolutions.com/re...ing-points.png

TC

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