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Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 05-06-2013, 11:37 AM   #1
LittleBear
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Pentosin LV brake fluid?

Hello BMW Experts!

Does anyone know the lowdown on this Pentosin Low Viscosity brake fluid. It says it was developed for the X5 & is good for all BMWs.

http://www.autohausaz.com/search/pro...@Brake%20Fluid

TIA! Murf
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Old 05-06-2013, 03:11 PM   #2
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Not sure. but why would you want to?
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Old 05-06-2013, 05:37 PM   #3
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It's made specially for BMW. Sort of like you are only supposed to use BMW coolant/antifreeze because that has a different viscosity.

Murf
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Old 05-07-2013, 05:36 AM   #4
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The coolant has a different additives package (and blue color), that is why it is special. That brake fluid is something else entirely.

Stick with DOT3/4
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Old 05-07-2013, 03:15 PM   #5
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I would recommend ATE Super Racing Blue. It has a higher boiling point than the Pentosin.

Pentosin Super DOT 4: Dry Boiling Point: 260 deg. C (500 deg. F). Wet Boiling Point: 165 deg. C (329 deg. F)

ATE Super Racing Blue: Dry Boiling Point: 280 deg. C (536 deg. F). Wet Boiling Point: 198 deg. C (388 deg. F).
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Old 05-07-2013, 04:14 PM   #6
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Thanks for the replies, folks. Out of curiosity, wat up wit da 'Low Viscosity' labeling?

Murf
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Old 05-07-2013, 07:15 PM   #7
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...well its a lower viscosity than the standard DOT 4
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Old 05-08-2013, 08:19 AM   #8
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Quote:
Originally Posted by Drew@Swift Motorworks View Post
...well its a lower viscosity than the standard DOT 4
...and this is good or bad?

Murf
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Old 05-08-2013, 10:00 AM   #9
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The Pentosin website makes a couple references to the cold weather properties of the LV. MY guess is its akin to a 0w-xx motor oil. Just a better formula for cold weather. Maybe the X5 that this was designed for has a newer/different ABS/DSC system that the engineers thought a LV brake fluid would be beneficial in extreme cold??

I use Valvoline "Synthetic" DOT 3/4. Made in America, available everywhere, works in everything, and much cheaper that Pentosin or ATE.

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