How often to Change Brake Fluid

[millsjq]

The owner's manual contradicts itself: The 1st paragraph of service periods states " brake fluid is renewed every 12 months" then one page later under the chart with three columns shows Every 2 years to renew brake/clutch fluid.

I could not tell if the fluid in my 09 Vantage was flushed during the 1st year service conducted 6 months ago or not so I did it just in case.

[Roo3]

I was told by the dealer recently it is every 2 years so they changed it whilst doing the 2 year service.

Stuart

[rick-derby-]

V8 vantages every 2nd year DB9/DBS etc every year

[millsjq]

Rick, Thanks again for providing expert information. The reason I asked is that I just finished flushing 2 ltr of Castol response (hard to get in US!) and the fluid that came out was the cleanest I have ever seen. Usually the fluid is somewhat darker and some indication of contaimination. I bought the car from a dealer in Dec who performed the one year service and wondered if they flushed the system. Better safe then sorry.

Edited by millsjq on Tuesday 19th April 12:58

[rb5230]

millsjq said:

Rick, Thanks again for providing expert information. The reason I asked is that I just finished flushing 2 ltr of Castol response (hard to get in US!) and the fluid that came out was the cleanest I have ever seen. Usually the fluid is somewhat darker and some indication of contaimination. I bought the car from a dealer in Dec who performed the one year service and wondered if they flushed the system. Better safe then sorry.

Edited by millsjq on Tuesday 19th April 12:58

I thought the brake fluid only absorbed moisture and so remains pretty clean visually. I could be wrong though.

[millsjq]

My previous cars, Porsche 993, 997, Acura etc. The fluid after 2 years is somewhat darker (than the new fluid) and often show some sign of moisture.

[mikey k]

The colour change comes from heat input, if you're not a hard braker it may not show.
What you cannot see is the moisture content.
IIRC most performance cars are every 2 years.

[Richales]

Should this be part of the service? I've just had a four year service done (£1200 worth) and they wanted to charge £130 odd extra for the brake fluid change - does that sounds right?

[Murph7355]

Richales said:

Should this be part of the service? I've just had a four year service done (£1200 worth) and they wanted to charge £130 odd extra for the brake fluid change - does that sounds right?

Depends what they quoted for, but generally no.

[Richales]

Just thought that if the manual suggests changing the fluid every 2 years, does that not suggest that it'd be part of every other anual service?!

Gearbox oil is changed every 4 years - and that was part of the 4 year service... I'm just a little bewildered.

What should a brake fluid change cost at a good indy? Derby is a bit too far for such a minor job.

[klee168168]

What do you recommend for brake fluid? Motul rbf600 or will the Motul dot5.1 work for weekend driving? I don’t track my car. They are sold by the 500ml per bottle. How many bottles do we need?

What is the difference between the Motul dot 5.1
And the Motul rbf600?

Motul Brake fluid, DOT 5.1 (N-S) - 500ml https://www.amazon.com/dp/B00CMZQMKS/ref=cm_sw_r_c...

Motul MTL100949 8068HL RBF 600 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid-500, 300. ml https://www.amazon.com/dp/B004LEYJO4/ref=cm_sw_r_c...

Edited by klee168168 on Sunday 26th January 05:04

Edited by klee168168 on Sunday 26th January 05:22

Edited by klee168168 on Sunday 26th January 05:39

Edited by klee168168 on Sunday 26th January 06:43