Originally Posted by Colm

Check with your service department. SRF and other high end fluids can erode the seals (and void warranty)

If you use the brakes properly, then the OEM fluid should do the job. If you need more braking, you need a Cup Car, because you are beyond the limits of the whole car!

Originally Posted by adfsouth

So all of us who've boiled the stock fluid at the track don't know how to use our brakes?

Such an open ended question, it might be that that besides not knowing how to use the brakes, it could be a case of not knowing how to drive. How would I know?

I will agree that high-fluid can erode the seals under certain circumstances however, I completely disagree with your coment about the stock fluid being sufficient for frequent trackwork. I know a lot of very good drivers who've boiled both OEM and ATE. Its a real bad feeling when that pedal gets mushy.

There is no special circumstance(s). The SRF erodes the seals, see Porsche Dealer for info.

You don't need to drive a Cup Car or be beyond the limits of a car in order to upgrade your brake-fluid....many of us appreciate a nice firm brake pedal at the end of a session or race.

A well driven 911 will always have a firm pedal (with standard fluid), barring over-use, abuse or mechanical failure. If you are so fast that you can exceed its limits and features you need a Cup Car. However, you don't need to be fast to abuse its limits (and therefore think you are fast)

Do you track your car often?

Originally Posted by todinlaw

I like and use Motul this is the cheapest place I can find 13.95 a btl. http://www.oneidasuzuki.com/store/pa...ake-fluid.html
No affiliation, just a interested consumer.

Originally Posted by Colm

Check with your service department. SRF and other high end fluids can erode the seals (and void warranty)


I appreciate all the responses.
Colm zero'ed in on my specific question--is there any reason to NOT use a higher BP fluid.

Has anyone had a seal erosion problem? or any other kind of problem?

Jim