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#4492019 - 08/18/17 03:24 PM Bosch ESI6 Extended Service Brake Fluid
silverbullet Offline

Registered: 10/12/05
Posts: 65
Loc: Northern California
Thoughts? Has anybody used it? Saw this on Autozone.

#4492024 - 08/18/17 03:34 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: silverbullet]
rooflessVW Offline

Registered: 12/24/11
Posts: 4301
Loc: North Carolina
Saw it on the shelf at my local store, right next to Pentosin Dot 4 LV.

I don't see why it wouldn't be anything but excellent in service.
"Zed's dead baby, Zed's dead."

#4492068 - 08/18/17 04:32 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: silverbullet]
Pelican Offline

Registered: 11/28/12
Posts: 169
Loc: Ajax,Ontario, Canada
Originally Posted By: silverbullet
Thoughts? Has anybody used it? Saw this on Autozone.

What do they mean by extended service? One should change the brake fluid every 2-3 years even with synthetics. smile

#4492091 - 08/18/17 05:00 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: silverbullet]
slacktide_bitog Offline

Registered: 03/20/08
Posts: 6342
Loc: USA
That looks like a great deal! Better boiling points and lower viscosity and a better price than Pentosin LV or any DOT 5.1!

For reference, the DOT 5.1 minimum boiling points are 500 dry, 356 wet, max visc 900.

The Bosch fluid is 518 dry, 365 wet, visc 670

I wish this was available when I needed it!

#4492242 - 08/18/17 07:29 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: slacktide_bitog]
bmwjohn Offline

Registered: 01/04/08
Posts: 728
Loc: indianapolis in
hmmmm. We just did the brakes on 1992 245. Used Valvoline DOT 4 synthetic. Wonder how much better this would be? Replaced 4 calipers, 4 premium Raybestos rotors, rebuilt M/C, Wagner premium ceramic pads.

#4492302 - 08/18/17 08:57 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: silverbullet]
Carmudgeon Offline

Registered: 04/26/05
Posts: 557
Loc: Under the hood
Looks like Bosch may be repackaging a slightly different version of ATE SL6, down to the tin can container.

The boiling points are a bit higher than SL6 (509/347; 700), though Typ200 is a bit higher still (536/388) but not a low-viscosity fluid.

For those who need a readily-available, high-performance LV fluid, this is good news.

#4492440 - 08/18/17 11:55 PM Re: Bosch ESI6 Extended Service Brake Fluid [Re: Carmudgeon]
edyvw Offline

Registered: 03/08/12
Posts: 5058
Loc: Colorado Springs
This is probably made by ATE for Bosch.
Not sure is color clear or it is dyed like good ole SL6? That was best thing.
13' BMW X5 35d (Mobil1 5W30 ESP+OEM filter)
11' VW Tiguan 2.0T (Castrol 0W40+MANN filter)