Brake fluid testers

MevagisseyMedic · 21st September 2014, 18:51

hi i have just been looking online at these brake fluid testers, they look quite good, but has anyone been able to use these on the clutch master cylinders.

If you have one what do you think of them?

HarryM1BYT · 21st September 2014, 18:55

I really would not bother for the clutch fluid. They test the conductivity of the fluid, the more conductive the more moisture they have absorbed, which is important for braking systems - because with hard use, it can boil and you loose your brakes.

Clutch fluid will not get hot, so less of a need for testing.

MevagisseyMedic · 21st September 2014, 19:00

Thanks Harry

trimani · 21st September 2014, 19:08

It was rumoured a couple of years ago that brake fluid testing was going to be part of MOT. Hasn't happened yet though.

This subject has been aired many times, usually about what DOT fluid to use, (I think it's all DOT 4 now), or whether it's worthwhile to change to Silicone fluid that doesn't absorb water.

T-Cut · 21st September 2014, 19:18

Quote:

Originally Posted by trimani

- - - whether it's worthwhile to change to Silicone fluid that doesn't absorb water.

From what I've read, the system must be either designed for silicone fluid (the polymer seals I assume) or silicone must be used from new. Basically, swapping from glycol to silicone isn't advised. Either way, I'll not be using DOT5 in mine. I think I read that DOT 5 isn't compatible with ABS.

TC

MevagisseyMedic · 21st September 2014, 19:51

So how would you know what is in your car especially if its a new car, clutch and brake. As for brake i would use dot 4 and mabe for the clutch as well.

3disco · 21st September 2014, 20:42

Quote:

Originally Posted by T-Cut

From what I've read, the system must be either designed for silicone fluid (the polymer seals I assume) or silicone must be used from new. Basically, swapping from glycol to silicone isn't advised. Either way, I'll not be using DOT5 in mine. I think I read that DOT 5 isn't compatible with ABS.

TC

As just about all cars have abs what would they use it for if that is the case?

marinabrian · 22nd September 2014, 15:46

No thanks Al I've found some newer stuff now

Brian

Doc Evil · 22nd September 2014, 15:58

Lol
Had a tidy myself yesterday, found all sorts of old tot
Anybody want 5 13mm sockets and 3. 10mm. seem to have kept buying them when my sons knick them I now have rail after rail of sockets in all styles in triplicate and enough plusgas to derust the Titanic

Doc

MevagisseyMedic · 22nd September 2014, 17:56

where can I get Castrol crimson from, want it, want it, want it

21st September 2014, 18:51	#1
MevagisseyMedic Avid contributor Rover 75 Club Tourer 2002 Auto Join Date: Apr 2014 Location: Mevagissey, Cornwall Posts: 234 Thanks: 19 Thanked 19 Times in 14 Posts	Brake fluid testers hi i have just been looking online at these brake fluid testers, they look quite good, but has anyone been able to use these on the clutch master cylinders. If you have one what do you think of them?

21st September 2014, 18:55	#2
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	I really would not bother for the clutch fluid. They test the conductivity of the fluid, the more conductive the more moisture they have absorbed, which is important for braking systems - because with hard use, it can boil and you loose your brakes. Clutch fluid will not get hot, so less of a need for testing. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

22nd September 2014, 15:58	#9
Doc Evil Gets stuck in Rover 75 1.8 Classic Saloon Join Date: Jan 2014 Location: Newton Abbot Posts: 823 Thanks: 46 Thanked 175 Times in 144 Posts	Lol Had a tidy myself yesterday, found all sorts of old tot Anybody want 5 13mm sockets and 3. 10mm. seem to have kept buying them when my sons knick them I now have rail after rail of sockets in all styles in triplicate and enough plusgas to derust the Titanic Doc __________________ NOT EVIL REALLY BUT REALLY A DOC

21st September 2014, 19:00	#3
MevagisseyMedic Avid contributor Rover 75 Club Tourer 2002 Auto Join Date: Apr 2014 Location: Mevagissey, Cornwall Posts: 234 Thanks: 19 Thanked 19 Times in 14 Posts	Thanks Harry

21st September 2014, 19:08	#4
trimani Passed Away ROVER 75 V6 2Ltr 2001 AUTO / EMERALD MOTORBILITY SCOOTER Join Date: Apr 2011 Location: Poole Quay Posts: 3,180 Thanks: 2,051 Thanked 570 Times in 311 Posts	It was rumoured a couple of years ago that brake fluid testing was going to be part of MOT. Hasn't happened yet though. This subject has been aired many times, usually about what DOT fluid to use, (I think it's all DOT 4 now), or whether it's worthwhile to change to Silicone fluid that doesn't absorb water.

21st September 2014, 19:51	#6
MevagisseyMedic Avid contributor Rover 75 Club Tourer 2002 Auto Join Date: Apr 2014 Location: Mevagissey, Cornwall Posts: 234 Thanks: 19 Thanked 19 Times in 14 Posts	So how would you know what is in your car especially if its a new car, clutch and brake. As for brake i would use dot 4 and mabe for the clutch as well.

22nd September 2014, 15:46	#8
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	No thanks Al I've found some newer stuff now Brian

22nd September 2014, 17:56	#10
MevagisseyMedic Avid contributor Rover 75 Club Tourer 2002 Auto Join Date: Apr 2014 Location: Mevagissey, Cornwall Posts: 234 Thanks: 19 Thanked 19 Times in 14 Posts	where can I get Castrol crimson from, want it, want it, want it