Philster

I've gotten some good info from searches, so feel safe posting without being punched in the face, even though I am a Porsche owner who might have committed the minor infraction of asking something that was asked before.

My understanding (from searching!) is that the a 997 brake fluid refill is in order every two years.

I learned this because, while my rotors are in fantastic shape and there is ample meat on all brake pads, my pedal action (as I just cross two years of ownership) went from very firm and strong to a bit soft. Not going to say spongy, but relative to two years ago, it's a soft brake pedal feel.

1) Is it best just to go back to spec/stock fluid? Are higher-performing brake fluids available if I am looking at 90% spirited street driving?

2) Is there anything unique to the process for 997's?

3) Any specific pointers?

4) Anyone want to punch me?

upier

I've had good luck with a pressure bleeder.
Amazon.com
Motive Products 0118 Power Bleeder
by Motive Products
$67.46
4.3 out of 5 stars (19)

Or similar.


No punches were thrown during this post.

Cbst09

ATE type 200 fluid is a good fluid for what you will be using the car for. I have a video on YouTube detailing the process. Search 997 brake bleed. There is not much unique to bleeding Porsche brakes other than that there is both an inner and outer bleed nipple. 1 liter should be enough to change out your fluid.

rherring

If you choose OEM fluid it is identical to Pentosin SuperDot 4 and can be purchased from Amazon etc.

http://www.pentosin.net/specsheets/P...SuperDot_4.pdf

cerbomark

http://www.6speedonline.com/forums/9...uid-flush.html

3Series

1.) Yes or ATE 200. I don't know how much the Pentosin fluid is but you can get ATE 200 for less than $20 shipped from Amazon. There is 0% need for race fluid even if you were doing 110% spirited street driving.

2.) Nothing unique. Just the extra bleed per caliper.

3.) Are you doing this yourself? If so, protect and protect any painted surface. You might want to suction out some of the fluid before flushing the fluid to speed things up.

4.) No. Really lame.

waizone

I'm not the handiest Porsche owner out there so take mine to an independent every other year and bring my own fluid. Cost me $126+/- and went with Pentosin Dot 4 from Pelican

Aspen Autosports

You should stick to the stock fluid. This is because brake fluid is hygroscopic, meaning it absorbs water. When water is absorbed it not only reduces the boiling point of the brake fluid but it also allows for moisture to be introduced to the inside of the brake hydraulic system. This could cause corrosion and rust to start to form. If this happens its possible that the sealing inside the system could rupture.

Now with all of that being said the higher the boiling point of the brake fluid the more hygroscopic it becomes. Which means you need to flush your fluid more often.

Is there anything wrong with using the Ate Type 200? Not at all, just be aware and flush the fluid more.

Philster

Good info from all.

As for increasing hygroscopic properties: It wouldn't stop me from opting for better fluid and jumping to annual flushes, and it won't be the first time I've dealt with such fluids, but (if true) that is an excellent reminder as to the downside of getting brake fluid with a higher boiling point.



.

Philster

Found it and saved it.

Grazie.

PelicanParts.com

This is a good fluid. I also personally utilize the Typ200 fluid (been using this for as long as I can remember, even when it was previously branded as "Super Blue") and utilize a Motive Power Bleeder for a much easier brake bleeding process. It is a huge time saver when it comes to bleeding your brakes.

Fluid http://www.pelicanparts.com/catalog/..._pg2.htm#item5
Motive http://www.pelicanparts.com/catalog/...pg3.htm#item14

Hella-Buggin'

unless you're tracking, OE fluid is fine. You can spend more money of higher temp fluid but if you got two years out of the previous stuff than you're fine.

Philster

Well, of course I'd be ordering from Pelican Parts.

PelicanParts.com

We appreciate the order and of course, if you have any questions during the process please do not hesitate to give me a shout.

Lvt19672

How do you know?