Brake fluid

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Discussion

Southcoaster

Original Poster:

29 posts

124 months

Monday 21st July 2014
quotequote all
Do any forum contributors know what the modern equivalent/replacement is for "Lockheed brake fluid orange " is?

My Bentley service book says that mineral fluid should be avoided because it will rot the rubber caps in the brake system,is silicon a suitable replacement or is there a more suitable fluid?

Any advice most gratefully received .

RichB

51,435 posts

283 months

Monday 21st July 2014
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I use DOT 4 in my '58 Aston.

Hooli

32,278 posts

199 months

Monday 21st July 2014
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Dot5 like french things?

V8 FOU

2,970 posts

146 months

Wednesday 23rd July 2014
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Any decent Dot4. Do NOT use silicon unless you change all the seals and pipes. Silicon isn't all that anyway. It might not be hydrascopic but it is anerscopic - i.e. it absorbs air easily and can be very difficult to bleed. Most Harleys use silicon and they still need regular fluid changes..

seicilindri

10 posts

116 months

Wednesday 23rd July 2014
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Not with you on the Dot 5.0

I really think its great.

I use it on a number of cars in my collection and never had to work on the brakes again.
The one I did 17 years ago still fels as crisp as the day it was first done.
As this is a rather expensive brake system i am quite happy with that and have used it on a lot of cars since.

However, you are right in the sense that you will need a complete rubber and seal change as otherwise the used rubbers will swell up