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+--- Thread: Brake Fluid (/showthread.php?tid=81557)
Brake Fluid - fazersharp - 31-03-20
Refurbing my rear brake. Is there any reason not to buy cheap Carlube DOT 4 brake fluid ?
Re: Brake Fluid - Gnasher - 31-03-20
Any DOT4 is fine.
Re: Brake Fluid - fazersharp - 31-03-20
(31-03-20, 03:44 PM)Gnasher link Wrote: Any DOT4 is fine.Thanks DOT4 is DOT4 - right.
Re: Brake Fluid - Gnasher - 31-03-20
(31-03-20, 04:47 PM)fazersharp link Wrote: [quote author=Gnasher link=topic=26037.msg311516#msg311516 date=1585665863]Thanks DOT4 is DOT4 - right.
Any DOT4 is fine.
[/quote]
Sure is
Re: Brake Fluid - darrsi - 01-04-20
A refurb after 22 years and you're asking about "cheap" brake fluid?
Even the good stuff is under £10 :groan
Re: Brake Fluid - fazersharp - 01-04-20
(01-04-20, 11:16 AM)darrsi link Wrote: A refurb after 22 years and you're asking about "cheap" brake fluid?Which is the best DOT 4 to use then. It is and it isn't about cost. I don't need to order from a bike shop and pay more than the item in post when I can get it from the Asda garage, but they dont sell fancy DOT 4 - only cheaper stuff like Carplan.
Even the good stuff is under £10 :groan
Re: Brake Fluid - Gnasher - 01-04-20
(01-04-20, 11:26 AM)fazersharp link Wrote: [quote author=darrsi link=topic=26037.msg311563#msg311563 date=1585736215]Which is the best DOT 4 to use then. It is and it isn't about cost. I don't need to order from a bike shop and pay more than the item in post when I can get it from the Asda garage, but they dont sell fancy DOT 4 - only cheaper stuff like Carplan.
A refurb after 22 years and you're asking about "cheap" brake fluid?
Even the good stuff is under £10 :groan
[/quote]
DOT 4 is DOT 4 pretty much or at least they will perform as a minimum to the standard which is fine, bit like fuel Shell, Esso, BP, Texaco, Gulf etc have refineries. Supermarkets buy their fuel from them but without a markers additives. Carplan and many others don't make it they buy it and brand it same as fuel.
Re: Brake Fluid - fazersharp - 01-04-20
(01-04-20, 11:35 AM)Gnasher link Wrote: [quote author=fazersharp link=topic=26037.msg311565#msg311565 date=1585736785]Which is the best DOT 4 to use then. It is and it isn't about cost. I don't need to order from a bike shop and pay more than the item in post when I can get it from the Asda garage, but they dont sell fancy DOT 4 - only cheaper stuff like Carplan.
[quote author=darrsi link=topic=26037.msg311563#msg311563 date=1585736215]
A refurb after 22 years and you're asking about "cheap" brake fluid?
Even the good stuff is under £10 :groan
[/quote]
DOT 4 is DOT 4 pretty much or at least they will perform as a minimum to the standard which is fine, bit like fuel Shell, Esso, BP, Texaco, Gulf etc have refineries. Supermarkets buy their fuel from them but without a markers additives. Carplan and many others don't make it they buy it and brand it same as fuel.
[/quote]What about "universal" like this one on sportsbike shop https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/47186 at £8.12. And the Motul DOT 3 and 4 at £6.41
Re: Brake Fluid - Gnasher - 01-04-20
(01-04-20, 11:49 AM)fazersharp link Wrote: What about "universal" like this one on sportsbike shop https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/47186 at £8.12. And the Motul DOT 3 and 4 at £6.41
Yes mate :thumbup it's actually DOT5.1 which is what I use, it can be mixed with any DOT3 or 4 fluid but not repeat not DOT5.
Re: Brake Fluid - fazersharp - 01-04-20
(01-04-20, 12:44 PM)Gnasher link Wrote: [quote author=fazersharp link=topic=26037.msg311570#msg311570 date=1585738175]
What about "universal" like this one on sportsbike shop https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/47186 at £8.12. And the Motul DOT 3 and 4 at £6.41
Yes mate :thumbup it's actually DOT5.1 which is what I use, it can be mixed with any DOT3 or 4 fluid but not repeat not DOT5.
[/quote]So its good for changing fluid in a bike that you do not know the grade of fluid is in there already as there will always be remnants of the old in there --- is that right ?
Also what use is DOT 3
Re: Brake Fluid - agricola - 01-04-20
Here you go https://blog.amsoil.com/dot-3-and-dot-4-brake-fluid-whats-the-difference/
Re: Brake Fluid - mtread - 01-04-20
DOT 3,4 or 5?
I always use this one
Re: Brake Fluid - Gnasher - 01-04-20
(01-04-20, 01:44 PM)fazersharp link Wrote: So its good for changing fluid in a bike that you do not know the grade of fluid is in there already as there will always be remnants of the old in there --- is that right ?
Yep........ Unless it's DOT5 this you wont or shouldn't come across on bikes, unless some nit has used it by mistake. 5.1 is a much improved version of 5 and is compatible with DOT3 & 4 without it's handling issues. DOT5 which is silicon based and handled more heat less hygroscopic, than 3- 4 but has handling issues I wont bore you with the details look it up if you're minded. Just don't use it.
(01-04-20, 01:44 PM)fazersharp link Wrote: Also what use is DOT 3
It's not used much these days for drum brake systems that operate at lower temperatures, it's just has a lower boiling point. All bike and cars for years have been DOT4 many are 5.1 nowadays.
A few were made with 5 but most can be converted to 5.1 but require complete system strip and clean beforehand they can't be mixed.
Re: Brake Fluid - darrsi - 01-04-20
(01-04-20, 03:02 PM)mtread link Wrote: DOT 3,4 or 5?
I always use this one
:agree
Re: Brake Fluid - robbo - 01-04-20
Pretty certain Harleys use Dot 5. About the only bike I can think of that does.
Re: Brake Fluid - Gnasher - 01-04-20
(01-04-20, 06:23 PM)robbo link Wrote: Pretty certain Harleys use Dot 5. About the only bike I can think of that does.
They did for a short while a good 10 years ago, then the handling/service issues with DOT5 became apparent. They switched over to DOT4 then 5.1 all their ABS/linked systems use 4 or 5.1, you can't use DOT5 in any ABS system car or bike just one of the issues with it.
Re: Brake Fluid - Trebus - 01-04-20
Only the good stuff for me lads ?
Re: Brake Fluid - fazersharp - 01-04-20
(01-04-20, 07:48 PM)Trebus link Wrote: Only the good stuff for me lads ?Exp April 1973 :lol
Re: Brake Fluid - Trebus - 01-04-20
It actually came from a garage clearance from my a deceased family member. Unopened tub, no water and therefore perfectly fit for purpose. No boiling so far. DOT 4 and 5.1 can be saved for the next century ?