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DOT 4 or DOT 3 synthetic brake fluid?

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Old 04-18-2008, 12:59 PM
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Default DOT 4 or DOT 3 synthetic brake fluid?
Does it matter if you use DOT 4 or DOT 3 synthetic brake fluid? Which is best?
 
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Old 04-18-2008, 02:06 PM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
Only Dot 4 either synthetic or regular, no Dot 3, it will kill your seals.
 
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Old 04-18-2008, 10:37 PM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
thanks Mike!
 
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Old 04-19-2008, 12:31 PM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
does it matter for a disco 1 or disco 2?
 
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Old 04-20-2008, 04:21 AM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
ORIGINAL: Disco Mike

Only Dot 4 either synthetic or regular, no Dot 3, it will kill your seals.
Quoted for truth, I just replaced a 6 month old master cylinder due to DOT 3 fluid (father-in-law did the work while I was still in Iraq.) Use Castrol GTLMA (DOT 4), if you cant find it locally but it from british pacific or atlantic british.
 
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Old 04-20-2008, 09:44 AM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
"DOT 4" only
 
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Old 04-20-2008, 11:38 AM
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Default RE: DOT 4 or DOT 3 synthetic brake fluid?
It seems that British-built cars use a different formulation of rubber on the brake seals, and DOT 3 will rot or dissolve them. This is the reason for the requirement of DOT-4. You must use DOT-4.
 
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Old 09-03-2021, 01:57 PM
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Default Rip off?
So I just took my LR3 into a shop to have my brake fluid flushed… the guy said it would be about $100 but since I have a Land Rover that takes dot 4 it’ll cost me $140… what the F? I was just at Advanced auto and dot 3 and dot 4 are the same price. Should I trust this guy or is he taking advantage of me because he heard the words Land Rover?
 
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Old 09-03-2021, 02:10 PM
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Originally Posted by petedriscoll23
So I just took my LR3 into a shop to have my brake fluid flushed… the guy said it would be about $100 but since I have a Land Rover that takes dot 4 it’ll cost me $140… what the F? I was just at Advanced auto and dot 3 and dot 4 are the same price. Should I trust this guy or is he taking advantage of me because he heard the words Land Rover?
It's a racket.. Do it yourself
 
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The following 2 users liked this post by Sandman614:
petedriscoll23 (09-03-2021), Richard Gallant (09-06-2021)
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