Hey guys,
So I'm guessing the brake fluid in the car hasn't been changed for about 20 years(!!). Its recommended dot 3, however, am I best putting dot 5.1 in purely because its "newer"? I've tried googling it a lot and cant find any good information. I just drive it normally.
Thanks,
Brake fluid change
Re: Brake fluid change
Be careful there.
What was good enough 20 years ago has lasted 20 years.
The 'modern' stuff can contain ingredients which are not compatible with the 'old' components in the system.
What was good enough 20 years ago has lasted 20 years.
The 'modern' stuff can contain ingredients which are not compatible with the 'old' components in the system.
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Scooby
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Re: Brake fluid change
DOT 3, 4, and 5.1 fluids are found in most brake and clutch systems. DOT 5 is a silicone oil based fluid and can only be used in new, dry systems.
In short, you can put DOT 4 in place of DOT 3 but not the other way around.
DOT 5 is not compatible with DOT 3 and 4 systems.
*Apparently, according to my tame mechanic.
In short, you can put DOT 4 in place of DOT 3 but not the other way around.
DOT 5 is not compatible with DOT 3 and 4 systems.
*Apparently, according to my tame mechanic.
Member no: 227
Location: Banks, Nr Preston, Lancs.
Drives: 2x 24V - Japha and Chewie
Location: Banks, Nr Preston, Lancs.
Drives: 2x 24V - Japha and Chewie
Re: Brake fluid change
I appreciate that, but I've dipped it with a tester pen and its showing atleast 4% water (the highest reading on the device). I guess its best to change it with DOT 3 to maximise compatibility?
Thanks,
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Andy W
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Re: Brake fluid change
That's what I thought. I know we aren't able to use silicone fluid which is a shame as it isn't hygroscopic.
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