Pentosin brake fluid option

beerdog1 · 03-01-2021, 11:55 AM

I am new to these cars. I am planning to flush my brakes. Is regular DOT 4 brake fluid the same as the Pentosin the manual lists? I have a 2011 135i.

Olgeezer1 · 03-01-2021, 04:42 PM

The stock brake fluid is LV(low viscosity). You don't have to stick with it if you're looking for something with a higher boiling point for track use. As I understand it, the LV fluid is for the very small passages in the ABS/ TC system. Many here, me included, have used higher performance fluids like Motul 600 without issue. I suppose there might be an issue in cold temps./ winter driving but I'm in storage all winter. Side note: Your Power steering fluid is also Pentosin. This is NOT interchangeable.

03-01-2021, 11:55 AM	#1
beerdog1 Enlisted Member 10 Rep 37 Posts Drives: BMW 135i Join Date: Aug 2019 Location: Westmont, IL iTrader: (0)	Pentosin brake fluid option I am new to these cars. I am planning to flush my brakes. Is regular DOT 4 brake fluid the same as the Pentosin the manual lists? I have a 2011 135i.
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03-01-2021, 04:42 PM	#2
Olgeezer1 Lieutenant 185 Rep 505 Posts Drives: 2010 128i 6MT Sport Pkg. 18" Join Date: Jul 2013 Location: Ottawa, Canada iTrader: (0) Garage List 2010 E82 128i N52 [0.00]	The stock brake fluid is LV(low viscosity). You don't have to stick with it if you're looking for something with a higher boiling point for track use. As I understand it, the LV fluid is for the very small passages in the ABS/ TC system. Many here, me included, have used higher performance fluids like Motul 600 without issue. I suppose there might be an issue in cold temps./ winter driving but I'm in storage all winter. Side note: Your Power steering fluid is also Pentosin. This is NOT interchangeable.
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