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Rommel

Member Since: 20 Aug 2017
Location: Sandhurst Berkshire
Posts: 634

2013 Freelander 2 TD4 XS Manual Fuji White

Silicone brake fluid.

Anyone gone over to this? and is it ok as I have heard it can give a spongy feel to the pedal?
Once changed it is non hydroscopic, main reason I ask is I want to put it in my MGB Roadster to stop the paint stripping in the vicinity of the master cylinders. 2013 FL2 XS.
Defender 90 300 TDi.
Defender 90 300 TDi CSW.
1964 MGB Roadster.
1944 Willys MB "Jeep" with bullet holes. (gone)
17 hand Irish Drought Thoroughbred (mostly lame)
Nagging Old Boiler.

Mahatma Gandhi said if there is an Idiot in power those who elected him are well represented

27th Sep 2023 6:21 pm

MotionInc

Member Since: 17 Jun 2019
Location: North America
Posts: 1355

Look at Motul 5.1.....it's compatible with DOT 4 brake fluids. I'm not familiar with Silicone but 5.1 is the bomb!

27th Sep 2023 11:06 pm

Nodge68

Member Since: 15 Jul 2020
Location: Newquay
Posts: 2082

2009 Freelander 2 TD4 SE Manual Rimini Red

It's ok once you get used to the softer pedal feel. This can normally be reduced by replacing rubber brake hoses with braided hoses.

Don't whatever you do use it in the Freelander, as it messes with the ABS modulator.
It's fine for classic cars without ABS though, and has the advantage of polishing paint instead of stripping it. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, my daily driver.
1972 Hillman Avenger GT, the project.

28th Sep 2023 6:13 am

Badger51

Member Since: 01 Mar 2014
Location: Coffs Harbour
Posts: 962

Re: Silicone brake fluid.

Rommel wrote:
Anyone gone over to this? and is it ok as I have heard it can give a spongy feel to the pedal?
Once changed it is non hydroscopic, main reason I ask is I want to put it in my MGB Roadster to stop the paint stripping in the vicinity of the master cylinders.

No problem at all in using silicone brake fluid in your MGB.

I used it for years in my ‘69 TR6, that I restored.

Yes, you will get a slightly softer pedal, but you’ll soon get used to it.

Unless you are rebuilding the brake/clutch systems, I’d recommend you flush the clutch & brake systems using methylated spirits, preferably with a pressure bleeder.

It can be slightly harder to remove all the air from silicone fluid as well, so try not to aeriate it before hand! (Now Sold). 2008 Freelander 2 (Nazca Sand) SE TD4 Auto. Statutory write off & on WOVR for hail damage but still road legal.
171037Km as of 09/05/22
Superchips Bluefin Flash
Nanocom Evo II (also sold)

28th Sep 2023 6:38 am

Steve D

Member Since: 19 Jan 2013
Location: Essexshire
Posts: 4109

Re: Silicone brake fluid.

Rommel wrote:
main reason I ask is I want to put it in my MGB Roadster to stop the paint stripping in the vicinity of the master cylinders.

Personally I’d be more worried about why fluid is leaking in the vicinity of the master cylinders - there shouldn’t be any! Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

28th Sep 2023 6:15 pm

Rommel

Member Since: 20 Aug 2017
Location: Sandhurst Berkshire
Posts: 634

Spillage by previous owner when topping up. 2013 FL2 XS.
Defender 90 300 TDi.
Defender 90 300 TDi CSW.
1964 MGB Roadster.
1944 Willys MB "Jeep" with bullet holes. (gone)
17 hand Irish Drought Thoroughbred (mostly lame)
Nagging Old Boiler.

Mahatma Gandhi said if there is an Idiot in power those who elected him are well represented

28th Sep 2023 6:37 pm

MartynB

Member Since: 08 Aug 2011
Location: Currently Rootless !
Posts: 1781

2009 Freelander 2 TD4 GS Auto Zermatt Silver

Glycol based brake fluids are hygroscopic for a reason . Absorption of water only lowers the boiling point to the ‘ wet boiling point ‘ . Silicone break fluids don’t absorb water so water in the system will boil and vapour lock . Silicone will always feel spongier than glycol . If you want the ultimate performance in a road fluid look for 600 series DoT 4 , the better the fluid the higher its boiling points . Silicone is a compromise . If you’re stripping problem is caused by filling , just buy big 100mil syringes and stick a bit of tube on to top up the reservoir , that’s what I used to do on my sports bikes which had all manner or shiny bits and a tiny reservoir over the MC . 2009 GS Auto Zermatt Silver - Sold June 21 after 10 years of ownership

2016 Subaru Outback SE 2.0 diesel SE Premium Lineartronic Sold 2024 after 8 years and 80k miles . Best Car I ever owned !

2023 Toyota Hilux invincible X 2.8 Auto .

28th Sep 2023 6:43 pm

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