[Tigers] brake fluid - Types

[drmayf]

Bugz... did you miss some decimal points in the boiling points table 
below?  Hard for me to believe those temperatures. I mean DOT 5.1 boils 
at 5180 degrees F? And so on...

I think that may be higher than melting tungsten or other exotic metal 
alloys...

mayf, just funning ya

Rense, Mark (GE Indust, ConsInd) wrote:

>The main difference between DOT 3 and DOT 4 (both glycol-based) is the boiling
>point. The DOT 4 has a higher boiling point for both wet and dry measurements.
>This is important to us because our clutch and master cylinder reservoirs are
>not sealed and therefore allow the passage of moisture, and since glycol-based
>fluid is hydroscopic, the DOT 4 rating will allow more moisture content while
>still providing adequate service.
>
>You CANNOT mix DOT 3 or 4 with DOT 5, as DOT 5 is silicon based. However, you
>can mix with the new DOT 5.1 fluid. The recommended fluid for most British
>cars old and new is Castrol GT/LMA, which is rated as a DOT 3/4. If you
>rebuild your hydraulics with all new synthetic rubber parts, you can use the
>silicon-based DOT 5, the advantage here is that when (notice I didn't say
>"if") it leaks, it does not affect the paint. The disadvantage of DOT 5 is
>that it does not absorb water at all, so the water pools in the cylinders and
>causes corrosion.
>
>In any case, flushing your brake fluid every other year is a Best Practice.
>
>Brake Fluid Rating  	Dry boiling point		Wet boiling point
>DOT 3 			2050C (4010F) 		1400C (2840F)
>DOT 4 			2300C (4460F) 		1550C (3110F)
>DOT 5 			2600C (5000F) 		1800C (3560F)
>DOT 5.1 			2700C (5180F) 		1910C ( 3760F)
>
>Bugz