Brake fluid change
 

The book maintenance says to change the brake fluid (flush and fill only I think) at 15k miles. That seems to be a very short interval. Does anyone do this at 15k miles? I asked a service manager at Toyota about this and he shrugged and side to not worry about it

Depends heavily on how it is used. I'm at 2x in 15k miles... One was after the bbk install, one this spring (where I mostly needed a bleed but messed up...)

I'd do it if it says it. If you don't track the car and just daily drive it just flush it with regular fluid otherwise use a higher performance fluid. Flush the clutch slave cylinder while the brakes are being done.

My dealer said it was unnecessary @30K miles.. I asked again at 40K, and was told the same thing. I did it anyway. It's cheap insurance. Might as well do it.

You can get one of those brake fluid testers. It tests for moisture. That's the enemy of brake fluid -- moisture. If it reads high, then replace it.

If you feel you must replace it, then replace it. It's your peace of mind. I replaced mine at the 2 year mark just for m own peace of mind. I don't track my car and my fluid was still in good condition when I did it.

x 2

i use brake fluid tester to replace it as well. dont feel like wasting my money and time either. yeah if you feel it must then do it.

No need to flush all the fluid, just the fluid in the caliper and some of the line. I bleed my brakes every 15k or so. With two people it takes no time at all.

Perfect opportunity to introduce your kids to the 'pump and hold' brake bleeding routine. lol

or get bleeder kit. only $20 bux from harbor freight

Brake fluid is changed by age not mileage. Water absorption is the issue. In humid climates flush all brake fluid every two years regardless of mileage. In dry climates three years is ok.

as has been said, get the tester and test for moisture.

if it's "wet" or very dirty then change it. otherwise I don't worry about it

You can get away with original brake fluid for years and years.
Most cars probably never ever change it.
But, if you want to work on your car and be a car guy,
then why not learn to do it for $10?
Good chance to learn something new.
Every 2 years is a decent guideline.

I've had at least 20 cars in my life and have never changed the brake fluid. I top it of from time to time. But I have never changed it.
I still have a Mk 4 GTI with the original brake fluid in it. It has 265,000 miles on it. And the brakes are as good as the day I bought it new. (The brake pads have been changed a few times.)

Ya know what?
This got me thinking. I just changed the pads on the FR-S a couple weeks ago and I never even opened the hood to check the brake fluid.
I think I'll go do that right now.