Differences in Brands of Dot 4 question

[dailydriver]

Originally Posted By: SteveSRT8
I have tracked my 4000 pound whale all over the country on regular DOT 4 fluid.

The brakes are factory 4 piston fixed calipers against 14 inch rotors, and I ran well over 150 mph at Homestead coming around to the infield raceway entrance.

Never a peep. You might WANT racing fluids, and the silicone based can help with special issues, but it is likely not needed.


But you DO bleed/flush out the system often using the off-the-shelf stuff, given your track use, no??
(Are there air ducts/hoses aimed at your rotors/calipers??)

 

[SteveSRT8]

Yes, I run Amsoil fluid and change it yearly.

My front brakes have functional ducts that aim air at them.

 

[dailydriver]

Originally Posted By: SteveSRT8
Yes, I run Amsoil fluid and change it yearly.


Even if that is the lesser of their 2 DOT 4s, isn't it still spec'd higher than (in wet and dry boiling points) most of the other 'off-the-shelf' fluids from China Mart/peps/etc. (i.e.; Prestone, Castrol LMA, etc.)??

 

[brandini]

Amsoil has only 2 brake fluids, a dot3 and dot4.

 

[SteveSRT8]

http://www.amsoil.com/storefront/bf4.aspx

There it is. I like small bottles so I can discard the open ones when they get old.

 

[dailydriver]

Originally Posted By: SteveSRT8
http://www.amsoil.com/storefront/bf4.aspx

There it is. I like small bottles so I can discard the open ones when they get old.


Just as I thought; Amsoil's DOT 3 kills everthing else (off the mass market shelf) in dry b.p., and at least equals, if not betters them in wet b.p.