Boxystar986 Posted September 4, 2021 Report Share Posted September 4, 2021 Hi all. This is my first post, so forgive me for probably asking a question that's been asked a hundred times before. What make and type of brake fluid should I use in my 2001 986 boxster S? Cheers. Quote Link to comment Share on other sites More sharing options...
map Posted September 4, 2021 Report Share Posted September 4, 2021 Are you topping up or completely changing the fluid? In terms of how you use the car is it road only or some track time? Quote Link to comment Share on other sites More sharing options...
Shazbot Posted September 4, 2021 Report Share Posted September 4, 2021 (edited) According to the Bentley manual Super DOT4 is standard spec. It has a higher boiling point than DOT 4 but is compatible with DOT4 if that has been used to top up. They are poly-glycol based . Unless you hoon everywhere or do track days it will be fine. Dot 5 is silicone based and needs the whole system to be purged as it is incompatible with Glycol based fluids. It doesn't take on water like glycol based and has a high boiling point. Dot 5.1 IS compatible with glycol based fluids but has higher boiling point than DOT4 . https://ebcbrakes.com/products/brake-fluids/#discover Edited September 4, 2021 by Shazbot Quote Link to comment Share on other sites More sharing options...
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