Best way to change Brake Fluid

**mystican** · 02-23-2005, 07:20

I have been using Valvoline Synthetic Brake Fluid in my NSX b/c it is easy to get at Walmart...I am now considering changing to Motul RB600...I used it in my B14 SE-R at the track....

The last time I did this...I pushed out all the regular Brake Fluid and then Poured in the RB600...and then the pain began...it took me a couple of days to finally get all those nasty little air bubbles out of the brake lines....

Some one told me to get the "One man bleeder" from Griots Garage...?????

Anybody have an easier approach? Thanks for the help!!!

**1TITENSX** · 02-23-2005, 07:24

Get Speed Bleeders..DIY is located here.

**mystican** · 02-23-2005, 07:37

I like Russell brand speed bleeders...but I dont think they last very long...I question its usefulness after heat build-up during many track events...

On my track whore (B14 SE-R) I have had to revert to a non-speed bleeding method...IMO, the speed bleeders one-way valving can not keep its integrity after many trak events...

**CDX_NSX** · 02-23-2005, 08:07

You can use a vacuum bleeder to do a one-man job. As for changing the fluid, it gets a little more tricky if the new and old fluids are the same color, but what I did when I replaced my brake fluid with Super Blue was to first siphon out most of the existing fluid in the reservoir, fill it with the new fluid, then bleed the brake lines until the new (blue) fluid starts coming out. No air ingestion.

**fkong777** · 02-23-2005, 08:22

yup... vaccuum bleeder. It will suck out all the fluid. Just have a buddy watch out and keep the brake fluid resoviour from being empty. empty = air pocket...

Or do a one man job and run and check the brake fluid level yourself.

Best to use a different color fluid for a easier job. I use those Blue fluids.. I think ATS is the brand.

**NSXGOLF** · 02-23-2005, 13:19

Originally Posted by fkong777

Best to use a different color fluid for a easier job. I use those Blue fluids.. I think ATS is the brand.

You mean ATE and they make the same fluid in blue and gold. That helps if you do yearly changes. It's even cooler if you have access to a power bleeder.

Don't forget to change the ABS system reservoir fluid.

**CDX_NSX** · 02-23-2005, 13:48

Originally Posted by NSXGOLF

You mean ATE and they make the same fluid in blue and gold. That helps if you do yearly changes. It's even cooler if you have access to a power bleeder.

Don't forget to change the ABS system reservoir fluid.

I actually have a Power Bleeder and used it on my Legend and a friends SC400. It works, but getting it to seal properly over the master cylinder is an art of its own.

**NSXDreamer2** · 02-23-2005, 21:51

I don't get it, isn't that as your fluid ages or overheated, it's become darker, (and that's when you want to swap it.) How could you not be able to see that?

yeah siphon the old fluid out of the reservoir using turket blaster, that way you won't get "all" the fluid out.

W · 02-24-2005, 00:24

I wouldn't drain the old fluid then add the new. That's an automatic air bubble nightmare. Use a turkey baster to suck out the fluid from the reservoir and add the new fluid. Then just bleed each brake line until you see the new fluid coming out.

I use and much prefer a vacuum bleeder as I have never had any problems. I even like it more than SpeedBleeders and especially much more than the old down-up two person approach.

**rjp** · 02-24-2005, 04:04

just adding my .02, if you are looking to purchase a product to help you change out your fluids, don't get the Motive Power Bleeder. It worked great on a Porsche i had but didn't work at all with the NSX (clamp on versus screw on adapters is the difference here). Good luck.

**Larry Bastanza** · 02-24-2005, 05:54

rjp,

I completely agree. That product is useless for the NSX reservoir. They say up to 3.5" diameter reservoir, but I could not get it to work and seal either.

I have now purchased a "Vacula" which also comes with a auto fill bottle so you do not have to run around and check the reservoir. It holds an additional quart and auto-fills the reservoir as you vacuum bleed. Great tool.

NSXdreamer2,

Typically fluid does get darker, however if you do it often it is harder to tell. I think the alternating color fluid just makes it easier. Certainly you will be able to tell, as you mention.

My $.02,
LarryB

**NSXDreamer2** · 02-26-2005, 16:04

Thanks for your reply, LarryB, I forgot that other brands had a lighter color, (I had Motul on all my cars), and it seems changed color pretty fast and noticeably when it's overheated, aged(esp. after track day).