[W126 Coupe] Fw: [s-cars] Mineral Oil as a substitute for Brake Fluid

[calvin young]

----- Original Message ----- 
From: "calvin young" <calvinyoung at cox.net>
To: <theringmeister at triad.rr.com>
Cc: "Taka Mizutani" <t44tqtro at gmail.com>; "Joshua Van Tol" <josh at spiny.com>; 
<s-car-list at audifans.com>
Sent: Friday, March 25, 2011 1:30 PM
Subject: Re: [s-cars] Mineral Oil as a substitute for Brake Fluid



> good point, obviously we would have to touch base with the tech folks at 

> the manufacurers to be absolutely safe or at least the tecnical specs in 

> some detail.

>

> The petosin in the 94 Audi S4 is high pressure for the power steering, 

> power brakes, although they use brake fluid for the brakes.  I am thinking 

> this is more for a cost savings for the owner than the fact that it is 

> better for the use.

>

> I also knew of another engineer who used silicon as a brake fluid in his 

> corvette.  He tore the system down after 20 years and found absolutely no 

> rust in his system.  One problem with that is common brake fluid and 

> silicone based brake fluid are incompatible, requiring complete flushing 

> of the common before the DOT 4 silicon fluid is installed.  Horrors of 

> horrors, some govenment engineer who sets the standards for brake fluids 

> might be able to add something here.  National institute of Standards?? I 

> know an enginner who works there, perhpas he might be able to steer me in 

> the right direction.

>

> I have eigtht vehicles and securing a better braking alternative is not a 

> moot point.

>

> Cal

> ----- Original Message ----- 

> From: "Wylie Bean" <theringmeister at triad.rr.com>

> To: "calvin young" <calvinyoung at cox.net>; 

> <s-car-list-bounces at audifans.com>; "S-CAR list" <s-car-list at audifans.com>; 

> <mbcoupes at mbcoupes.com>

> Cc: "calvin McFarland" <urone2212 at gmail.com>

> Sent: Friday, March 25, 2011 10:40 AM

> Subject: Re: [s-cars] Mineral Oil as a substitute for Brake Fluid

>

>

>> Boiling point?

>> Wylie Bean

>> 90 cq

>> 91 90q20v

>> 92 UrS4

>> 08 Q7

>>

>> -----Original Message-----

>> From: "calvin young" <calvinyoung at cox.net>

>> Sender: s-car-list-bounces at audifans.com

>> Date: Fri, 25 Mar 2011 10:24:39

>> To: <s-car-list at audifans.com>; <mbcoupes at mbcoupes.com>

>> Cc: calvin McFarland<urone2212 at gmail.com>

>> Subject: [s-cars] Mineral Oil as a substitute for Brake Fluid

>>

>> I solved my own problem and learned a lot about the hydropneumatic 

>> suspension fluid.  I recommend all who are interested in the subject go 

>> to http://en.wikipedia.org/wiki/Hydropneumatic_suspension  It talks about 

>> the care and use of the system and evolution of the fluids as time and 

>> problems affected the system.

>>

>> I would like to start a general discussion about using this or another 

>> similar type mineral based fluid as a subsitute for the DOT brake fluid. 

>> The reason is that normal brake fluid is hygoscopic, i.e., attracts 

>> moisture, and must be changed every year to keep the brakes operating 

>> without incident.  This was the reason the manufacturer switched to a 

>> mineral based fluid for the hydropneumatic suspension, failure in the 

>> systems caused by moisture and dust.  Anyone made the switch or know who 

>> has?   Audi uses the Petosin mineral based fluids.  What about the modern 

>> MB or Audi cars?

>>

>> Cal

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>