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Post by Karl on Sept 2, 2015 21:28:57 GMT 1
I've tested brand new fluid in the past(still in the bottle) and it's not met the minimum! But what was the use by date on the bottle ?
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oli
Apprentice
Posts: 1,065
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Post by oli on Sept 2, 2015 21:41:44 GMT 1
I once deliberately tried to boil the fluid on a vehicle. It took a while to do, but when it happened it was very sudden and really quite alarming. The brakes went from fine to almost nothing very fast. I can imagine it would be quite terrifying on a downhill stretch. You could still hear them bubbling when I stopped.
Every three years for me.
Oil
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Post by chippie on Sept 2, 2015 21:42:23 GMT 1
Its not coke honest Hmm, its not the old crimson coloured Girling or golden coloured Lockheed stuff neither ....either way, dont think Id drink it...
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Post by valhalla on Sept 2, 2015 21:47:55 GMT 1
The problem (to me, anyway) is checking the fluid quality at all four wheels, just to see what it actually looks like. By the time I've done this, and dipped the fluid tester into the bottle, I might as well just bleed new fluid through and be done with it. The quality of the fluid at the calipers is where it matters, and that is also where things seem to get seized/rotten as well.....
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oli
Apprentice
Posts: 1,065
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Post by oli on Sept 2, 2015 22:10:03 GMT 1
Yeah, I agree. Cheap and easy to do whilst checking the brakes with the wheels off. I wonder if half the master cylinders that leak are due to moisture in the fluid.
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Post by studabear on Sept 2, 2015 22:12:13 GMT 1
When a cars brakes have been serviced well and the fluid changed you can normally feel a good improvement in pedal feel and general performance.
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Post by Noberator on Sept 2, 2015 22:16:04 GMT 1
Its not coke honest Hmm, its not the old crimson coloured Girling or golden coloured Lockheed stuff neither ....either way, dont think Id drink it... Looks more like black coffee.
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Post by valhalla on Sept 2, 2015 22:31:33 GMT 1
It looks like the colour of clutch hydraulic fluid you get from a Landrover Defender (or SeriesIII) after about 1day after changing it! I don't know what it is about their circuits, something to do with the proximity to the back of the engine and the exhaust maybe, but they have an ability to chew through master and slave cylinders on an annual basis, turning the fluid black in hours. Tastes rotten as well......
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Post by Rhubarb on Sept 2, 2015 23:42:56 GMT 1
I've tested brand new fluid in the past(still in the bottle) and it's not met the minimum! But what was the use by date on the bottle ? There was plenty of date left...I can't remember offhand, it was about 15 years ago
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Post by eddypeck on Sept 3, 2015 11:50:32 GMT 1
I was always lead to believe it's 2 years and it's due to the nature of it being highly moisture absorbent. Open brake fluid will soak up the moisture from the atmosphere, as water contains oxygen if your fluid is diluted with water then it compresses more as the tiny air bubbles take up the slack and therefore is less efficient. You're not even supposed to use brake fluid from an open bottle so it's not cost effective buying in bulk. I've also heard it said that overtime, atmospheric moisture can penetrate rubber brake hoses but even if so I guess we're talking trace elements Either way I've done a lot of stuff with sports and super bikes and the brakes it not something to neglect so I've always stuck to this and changed at least every 2 years, but never been so concerned when it's come to the cars. I expect the 2004 Honda my wife has just got is still on it's original stuff is the rest of the car's maintenance is anything to go by. It's another job on the to do list.
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Deleted
Deleted Member
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Post by Deleted on Sept 3, 2015 21:33:05 GMT 1
Tastes rotten as well...... You may not be aware of it, but we actually have brake fluid testers to check its quality and fitness for purpose LOL
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Post by wheelnut on Sept 11, 2015 14:38:29 GMT 1
You may not be aware of it, but we actually have brake fluid testers to check its quality and fitness for purpose LOL Is that "testers" or "tasters"?
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Post by rhyds on Sept 11, 2015 14:40:50 GMT 1
Brake fluid with a screenwash chaser
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Deleted
Deleted Member
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Post by Deleted on Sept 11, 2015 20:30:08 GMT 1
You may not be aware of it, but we actually have brake fluid testers to check its quality and fitness for purpose LOL Is that "testers" or "tasters"? Sorry I meant "Tasters" lol
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Post by valhalla on Sept 11, 2015 22:09:09 GMT 1
You may not be aware of it, but we actually have brake fluid testers to check its quality and fitness for purpose LOL Is that "testers" or "tasters"? "Testers" quite often get confused with "testes" on a production line!
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