Quote:
Originally Posted by maytag
Caveat here, that I've purchased 660 and have it on the shelf, but I haven't ever used it because everything I read steers me away from needing it.
The issue with 660 is that it has a lower] wet boiling point than the 600. (600 is 216°c, compared to 660's 205°c). Dry is higher, but wet is lower.
I already bleed the 600 before every track weekend, and flush a couple of times per season. Obviously this is required because of the hygroscopic nature of brake fluid. Heat cycling exacerbates this. So with a LOWER wet boiling point in the 660 I'll need to bleed & flush MORE frequently than I do with the 600.
I've only boiled 600 once (which is why I went to a more frequent bleed / flush interval). As long as that's the case, I don't know why I'd want to change to the 660, creating more work for myself :dance:
Of course YMMV.
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Yea, what he said 
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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