I did a Google search. $10/bottle (.5 litre = 500ml = 16.9 oz) is cheap.
Most places wanted $13-$20!
>From AutoZone online:
12 oz. DOT 3: $2.59
12 oz. DOT 4: $3.99
11 oz. DOT 5: $7.99
You pays your moneys and takes yer choices...I'll stick with DOT 4 and flush
the brakes every two years.
Pete
-----Original Message-----
From: datsun-roadsters-bounces+ppeters914=comcast.net@autox.team.net
[mailto:datsun-roadsters-bounces+ppeters914=comcast.net@autox.team.net] On
Behalf Of Steve Jacobson
Sent: Wednesday, February 20, 2008 5:34 PM
To: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] Datsun-roadsters Digest, Vol 2, Issue 75
[snip]
I use Motul 600 (DOT 5.1) in my race cars, holds up well, best feel to me,
about $10/bottle (?.5 liter?, 12 or 16 oz). I have liked it the best. Don't
have to worry about wet as it is changed very often.
Lots of people (racers, especially circle trackers) swear by FORD
competition DOT4. Really cheap, real good. Must be gotten at Ford dealer.
For the street, a good DOT 4 should suffice. I have used the Valvoline
synthetic, seems OK.
As long as you don't let it sit forever, s/b OK. A change every 2 years
should be quite enough to keep things clean (IMHO).
Speedbleeders make the job easy, as well as a vacuum bleeder. I have not
had real good luck getting stubborn bubbles out with a pusher-type bleeder.
I think you need one of the good professional, tall ones, not the little
bottle types maybe. I also built a power bleeder, works, but as I say,
doesn't get out the stubborn bubbles.
I'll not even attempt to go into the supposed physics of why that may be,
cuz I can't prove it. They just haven't seemed to work as well for me.
--------------------------------
Its been a while since I have worked on my roadsters, but I have some
questions: Forever DOT3 was the standard brake fluid which is hygroscopic
(absorbs water from high humidity air) which then ends up rusting your
brake calipers. Some one told me about DOT 4 which was silicone based & was
not hygroscopic so rusting wasn't a problem for a seldomly driven car. When
I changed over to "4" my brakes were extremely spongy & was accordingly was
a problem with this type of brake fluid. I even built a pressurized auto
bleeder so I could bleed my brakes alone but resulted in no reduction in
sponginess. So what is DOT 5 & 5.1? Do these new fluids address the
sponginess or rusting problem?
Steve
Steve's Racing web site
www.NoNameRacing.com
Elkhart Lake Racing & Sipping Society home
www.elrss.com
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