Brake Fluid

WE3RX7 · 04-03-2008, 05:36 PM

Well I used Valvoline in the last 8 and in my other FB - but looking around these days and preparing for the gap next weekend I want to put a really good fluid in. One that can take the steep incline and harder corners of the gap.

What are your preferences in the fluids or is your state of mind the same as mine generally is - which is it doesnt really matter so long as you change it regularly??

I changed my FC's brake fluid every 10K miles...

I8U · 04-03-2008, 07:09 PM

I'm partial to Motul mainly cuz that's what our race team uses...but really any DOT 4 fluid would be fine up there. There really isn't that much hard braking up there, especially now with all the traffic and the POPO!

WE3RX7 · 04-03-2008, 08:33 PM

Ah - I've never been, so I just wanted to be sure I'm prepared.

I will still go with a better than OE fluid though. OG Racing is a speed shop near me that carries lots of good brands.. I can AP550 pretty cheap! I wasnt sure if I needed to go higher boiling point, but it sounds like I'll be ok, the grade of most of the curves doesn't look bad if I'm only taking them at 55mph or less.

Thanks!

albertomg · 04-04-2008, 04:01 PM

I have often used the Valvoline Sythetic stuff that you find at most local auto parts stores. Works quite well. I recently switched to the ATE Super Blue. I haven't noticed a difference.

WE3RX7 · 04-04-2008, 06:28 PM

The super blue is what I used in my FC from time to time, it makes it easier to tell when all your fluid is flushed.

Optimally, you should switch between blue and gold every flush, just makes life easier - but its not always on hand...

I8U · 04-04-2008, 06:31 PM

Quote:

Originally Posted by WE3RX7

Ah - I've never been, so I just wanted to be sure I'm prepared.

I will still go with a better than OE fluid though. OG Racing is a speed shop near me that carries lots of good brands.. I can AP550 pretty cheap! I wasnt sure if I needed to go higher boiling point, but it sounds like I'll be ok, the grade of most of the curves doesn't look bad if I'm only taking them at 55mph or less.

Thanks!

Honestly, don't let the pics fool you. Most of the turns are taken in the 35+ mph range but no where near 50...but man it is still a rush!!! About half way thru you'll be wanting to check your pants for stains...HAHA! Oh yeah, OG Racing are some good guys, I've done business with them before. AP550 is some good stuff too, you won't be disappointed.

WE3RX7 · 04-05-2008, 07:49 PM

I got the fluid today - its now AP551. Of course I hit up OG Racing on an open house day so all the porsche club guys are there, lol.. oh well. My buddy went with the AP600 for his 8 as he actually auto-x his regularly, where mine just sees heavy street use and maybe the occasional auto-x...

WE3RX7 · 04-05-2008, 08:04 PM

Oh - I should note that the AP551 is DOT3 though, not DOT4 as our systems recommend. However, the dry boil point is 257C, or 527F degrees which is much higher than the 446F required to be DOT4 and the 518F to be DOT5.1, so its completely safe (and it is NOT silicon based BTW). Wet boil is what makes it DOT3 and really, who cares about WET boil if you change the brake fluid often enough...

04-03-2008, 05:36 PM	#1
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	Brake Fluid Well I used Valvoline in the last 8 and in my other FB - but looking around these days and preparing for the gap next weekend I want to put a really good fluid in. One that can take the steep incline and harder corners of the gap. What are your preferences in the fluids or is your state of mind the same as mine generally is - which is it doesnt really matter so long as you change it regularly?? I changed my FC's brake fluid every 10K miles...

04-03-2008, 07:09 PM	#2
I8U KONI Challenge Crew Join Date: Mar 2008 Location: Goldsboro, NC iTrader: (0) Posts: 126 Rep Power: 17	I'm partial to Motul mainly cuz that's what our race team uses...but really any DOT 4 fluid would be fine up there. There really isn't that much hard braking up there, especially now with all the traffic and the POPO! __________________ 04 TiGray RX8 MT, LS2 coil setup, 3" midpipe, HKS Hi-power 3" exhaust, TEIN S-Techs, Hotchkis Adj F/R sways, K&N Typhoon V2, Steel braided brake lines, Redline drivetrain fluids, ATE Super Blue brake fluid, Cobalt XR2/GTS brake combo, MB Motorpsorts Weapons 18x9 +45 offset, 275/35's I Support the KONI Sports Car Challenge!

04-03-2008, 08:33 PM	#3
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	Ah - I've never been, so I just wanted to be sure I'm prepared. I will still go with a better than OE fluid though. OG Racing is a speed shop near me that carries lots of good brands.. I can AP550 pretty cheap! I wasnt sure if I needed to go higher boiling point, but it sounds like I'll be ok, the grade of most of the curves doesn't look bad if I'm only taking them at 55mph or less. Thanks! Last edited by WE3RX7; 04-03-2008 at 08:43 PM..

04-04-2008, 04:01 PM	#4
albertomg Rotary Fan in Training Join Date: Feb 2008 Location: Bay Area CA iTrader: (0) Posts: 91 Rep Power: 17	I have often used the Valvoline Sythetic stuff that you find at most local auto parts stores. Works quite well. I recently switched to the ATE Super Blue. I haven't noticed a difference.

04-04-2008, 06:28 PM	#5
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	The super blue is what I used in my FC from time to time, it makes it easier to tell when all your fluid is flushed. Optimally, you should switch between blue and gold every flush, just makes life easier - but its not always on hand...

04-05-2008, 07:49 PM	#7
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	I got the fluid today - its now AP551. Of course I hit up OG Racing on an open house day so all the porsche club guys are there, lol.. oh well. My buddy went with the AP600 for his 8 as he actually auto-x his regularly, where mine just sees heavy street use and maybe the occasional auto-x...

04-05-2008, 08:04 PM	#8
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	Oh - I should note that the AP551 is DOT3 though, not DOT4 as our systems recommend. However, the dry boil point is 257C, or 527F degrees which is much higher than the 446F required to be DOT4 and the 518F to be DOT5.1, so its completely safe (and it is NOT silicon based BTW). Wet boil is what makes it DOT3 and really, who cares about WET boil if you change the brake fluid often enough...