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Brake Fluid Change?

 
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MikeJinCO  



Joined: 08 Jun 2010
Posts: 936
Location: Maysville, Colorado

PostPosted: Fri Jan 10, 2020 12:04 am    Post subject: Brake Fluid Change? Reply with quote

I have Motul RBF600 in the race car brake system, do I need to change it out completely over the winter or will just a thorough bleeding suffice? I'm also de-glazing the pads between race weekends.
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Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
cricketdesigns.com
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CÚdric  



Joined: 27 Aug 2004
Posts: 1998
Location: Sweden

PostPosted: Fri Jan 10, 2020 12:15 am    Post subject: Reply with quote

For your kind of use I would do it (I did when i tracked reaguarly) every winter. If you do it correctly it just about works with a 0,5l can of RBF600 to get all the old fluid out, so its not very expensive.

Thanks to some US law of stupidity you cant buy ATE racing blue any more. Otherwise altering between the blue fluid and RBF600 was a brilliant way of knowing when the old fluid was flushed out. But at least I learnt that 0,5l is enough to completely change the fluid
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Fifty50Plus  



Joined: 28 Feb 2008
Posts: 1107
Location: Washington DC area

PostPosted: Fri Jan 10, 2020 5:03 am    Post subject: Reply with quote

I do a complete flush of the 600 every year. For a few years, I added a tiny bit of food coloring to the clear new fluid to be able to tell when the old fluid was gone and then the next year just use the clear until the colored fluid was gone. Maybe that's why when I hit the brakes I smell cupcakes
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1979 924 NA race car
1982 924 NA race car - Sold
1982 924 Turbo almost a PoS
1981 924 Turbo a real PoS, new engine
1982 924 Turbo nice body, blown engine
1972 911 E race car - going to Vintage
Various 944s to become IT-S race car
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MikeJinCO  



Joined: 08 Jun 2010
Posts: 936
Location: Maysville, Colorado

PostPosted: Fri Jan 10, 2020 12:13 pm    Post subject: Reply with quote

OK, will do
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Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
cricketdesigns.com
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924RACR  



Joined: 29 Jul 2001
Posts: 8346
Location: Royal Oak, MI, USA

PostPosted: Fri Jan 10, 2020 11:48 pm    Post subject: Reply with quote

I flush every year, regardless of usage.
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Vaughan Scott
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'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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