Brake fluid reservoir empty - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

cab33 · 07-11-2015, 10:23 AM

Is there a trick to getting the brake fluid out of the reservoir?
A turkey baster just reaches the top 20%.

dem00n · 07-12-2015, 12:02 PM

Your best bet it to slowly pour the new fluid in the reservoir, the new fluid should float on top of the old fluid, so when you do bleed the brakes you'll get 99% of the old fluid out.

If you do it every year with quality brake fluid, you'll be fine.

pantdino · 07-12-2015, 07:32 PM

Quote:

Originally Posted by dem00n

the new fluid should float on top of the old fluid, so when you do bleed the brakes you'll get 99% of the old fluid out.
.

I have never heard that new fluid floats on old fluid.

If they are the same chemical, why should it?

dem00n · 07-12-2015, 10:28 PM

Quote:

Originally Posted by pantdino

I have never heard that new fluid floats on old fluid.

If they are the same chemical, why should it?

I've wondered the same thing as well.

Brake fluid is hydrophobic, perhaps the older brake fluid which would have a higher content of water, allows newer brake fluid to float on top of it. I'm not stating so much that old brake fluid and new brake fluid always remain separate, but when bleeding brakes, new brake fluid slowly poured on top of the old tends to stay put. It has worked for me.

Also all brake fluid are created without different mixtures, compounds, etc.

I have no idea if this is right, just a guess.

wbradley · 07-12-2015, 10:31 PM

Once the new fluid in the reservoir is drawn into the lines by bleeding, I don't believe a whole lot of mixing occurs.

Wyattkb · 07-13-2015, 03:09 AM

I just kept adding new fluid as I flushed the old fluid out. I used a clear vinyl tube and container so I could see as soon as the new fluid started to pump out. The difference between old fluid and new fluid is night and day.

Also don't forget to bleed them in the proper order to ensure you get all the old fluid/air out.

wbradley · 07-13-2015, 08:48 AM

BTW I believe brake fluid up to DOT 4 is hydrophilic. Glycol based compounds mix with water readily. Don't use DOT 5.

RD1428 · 07-16-2015, 07:10 PM

Or what?^

swarb · 07-16-2015, 07:25 PM

Quote:

Originally Posted by RD1428

Or what?^

or you die.

WHITE · 07-16-2015, 08:13 PM

^^can't argue with that logic.

wbradley · 07-16-2015, 08:54 PM

Quote:

Originally Posted by RD1428

Or what?^

Google it.

stugray · 07-16-2015, 09:04 PM

they USED to sell the ATE BF in gold and blue.
That way you could altrernate colors and bleed until the color changes.

Now they supposedly cant sell the blue in the US anymore because techs were pouring it in the Windshield washer resivoir.
Glad I bought 3 quarts of it while you still could.

07-11-2015, 10:23 AM	#1
cab33 Member Join Date: May 2015 Drives: Fast Location: Central, FL Posts: 34 Thanks: 16 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Brake fluid reservoir empty Is there a trick to getting the brake fluid out of the reservoir? A turkey baster just reaches the top 20%.

07-12-2015, 12:02 PM	#2
dem00n Member of the year - 2016 Join Date: Jul 2012 Drives: Scion FRS Location: New York Posts: 3,575 Thanks: 788 Thanked 2,427 Times in 1,111 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	Your best bet it to slowly pour the new fluid in the reservoir, the new fluid should float on top of the old fluid, so when you do bleed the brakes you'll get 99% of the old fluid out. If you do it every year with quality brake fluid, you'll be fine. __________________ Friends don't let friends Plastidip

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07-13-2015, 03:09 AM	#6
Wyattkb Senior Member Join Date: Oct 2013 Drives: 2014 Whiteout FRS Location: United States Posts: 444 Thanks: 56 Thanked 159 Times in 87 Posts Mentioned: 3 Post(s) Tagged: 1 Thread(s)	I just kept adding new fluid as I flushed the old fluid out. I used a clear vinyl tube and container so I could see as soon as the new fluid started to pump out. The difference between old fluid and new fluid is night and day. Also don't forget to bleed them in the proper order to ensure you get all the old fluid/air out.

07-16-2015, 07:10 PM	#8
RD1428 Senior Member Join Date: Sep 2012 Drives: 2013 Scion FRS Location: CA/NH Posts: 209 Thanks: 16 Thanked 44 Times in 33 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Or what?^

07-16-2015, 08:13 PM	#10
WHITE Thats pretty neat Join Date: Jun 2013 Drives: LOADING...... Location: Wilkes-barre, pa Posts: 201 Thanks: 114 Thanked 95 Times in 67 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	^^can't argue with that logic.

07-16-2015, 09:04 PM	#12
stugray Banned Join Date: Sep 2013 Drives: 2013 GBS BRZ Limited Location: Colorado Posts: 1,925 Thanks: 627 Thanked 1,445 Times in 711 Posts Mentioned: 41 Post(s) Tagged: 0 Thread(s)	they USED to sell the ATE BF in gold and blue. That way you could altrernate colors and bleed until the color changes. Now they supposedly cant sell the blue in the US anymore because techs were pouring it in the Windshield washer resivoir. Glad I bought 3 quarts of it while you still could.

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