Brake Fluid
07-31-2012, 11:44 PM
#12
AudiWorld Super User
I think you missed something. DOT 5.1 is specially designed for ABS and not specially for racing. There are special racing fluids that have even higher dry boiling point but are very hygroscopic and have to be changed before every race. Also no ABS.
08-01-2012, 01:44 AM
#13
AudiWorld Member
DOT 5, not to be confused with DOT 5.1, a polyethylene glycol based fluid.
DOT 5 is one of several designations of automotive hydraulic brake fluid, denoting a particular mixture of chemicals imparting specified ranges of boiling point.
DOT 5 is a silicone-based brake fluid (contains at least 70% by weight of a diorgano polysiloxane[1]).
Unlike polyethylene glycol based fluids, it is hydrophobic. Its chief advantage over other forms of brake fluid is that silicone exhibits a more stable viscosity index in extreme temperatures. It is widely used in the antique automobile arena as well as it does not damage paint.
Using DOT 5 in a DOT 3 or DOT 4 system without proper flushing will cause damage to the seals and cause brake failure. DOT 5 brake fluid is not compatible with anti-lock brake systems. DOT 5 brake fluid absorbs a small amount of air requiring care when bleeding the system of air.
[edit]
http://en.wikipedia.org/wiki/DOT_5
08-01-2012, 07:49 AM
#14
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DOT 5 is not compatible, DOT 5.1 completely is.
DOT 5, not to be confused with DOT 5.1, a polyethylene glycol based fluid.
DOT 5 is one of several designations of automotive hydraulic brake fluid, denoting a particular mixture of chemicals imparting specified ranges of boiling point.
DOT 5 is a silicone-based brake fluid (contains at least 70% by weight of a diorgano polysiloxane[1]).
Unlike polyethylene glycol based fluids, it is hydrophobic. Its chief advantage over other forms of brake fluid is that silicone exhibits a more stable viscosity index in extreme temperatures. It is widely used in the antique automobile arena as well as it does not damage paint.
Using DOT 5 in a DOT 3 or DOT 4 system without proper flushing will cause damage to the seals and cause brake failure. DOT 5 brake fluid is not compatible with anti-lock brake systems. DOT 5 brake fluid absorbs a small amount of air requiring care when bleeding the system of air.
[edit]
http://en.wikipedia.org/wiki/DOT_5
DOT 5, not to be confused with DOT 5.1, a polyethylene glycol based fluid.
DOT 5 is one of several designations of automotive hydraulic brake fluid, denoting a particular mixture of chemicals imparting specified ranges of boiling point.
DOT 5 is a silicone-based brake fluid (contains at least 70% by weight of a diorgano polysiloxane[1]).
Unlike polyethylene glycol based fluids, it is hydrophobic. Its chief advantage over other forms of brake fluid is that silicone exhibits a more stable viscosity index in extreme temperatures. It is widely used in the antique automobile arena as well as it does not damage paint.
Using DOT 5 in a DOT 3 or DOT 4 system without proper flushing will cause damage to the seals and cause brake failure. DOT 5 brake fluid is not compatible with anti-lock brake systems. DOT 5 brake fluid absorbs a small amount of air requiring care when bleeding the system of air.
[edit]
http://en.wikipedia.org/wiki/DOT_5
02-25-2017, 07:17 PM
#17
As kids we were flying 0.49 model planes the one with strings control. We got up to a super-stunt, during all waking, daylight hours we were flying.
Anyway one Sunday we ran completely out of gas. So my older brother thinned some brake fluid with alcohol, and we fired it up. Ran well, not quite the juice of the real fuel but more than enough to keep the party on. No engine damage.
On the same principle, my V70R (w/valve turbo fault) sucked the brake system dry and burnt to the ground. Video is on youtube, you can see the trail of brake fluid under the car and I had no brakes when I stopped/exploded in a ball of flame. One $0.49 check valve in the vacuum line to the turbo would have saved my car. Dummies.
And Volvo Canada could care less. & Dummiers.
Anyway one Sunday we ran completely out of gas. So my older brother thinned some brake fluid with alcohol, and we fired it up. Ran well, not quite the juice of the real fuel but more than enough to keep the party on. No engine damage.
On the same principle, my V70R (w/valve turbo fault) sucked the brake system dry and burnt to the ground. Video is on youtube, you can see the trail of brake fluid under the car and I had no brakes when I stopped/exploded in a ball of flame. One $0.49 check valve in the vacuum line to the turbo would have saved my car. Dummies.
And Volvo Canada could care less. & Dummiers.
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