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Sorry, using memory as my only reference meant I got it arse about.
![]() As far as I am aware, the following info is correct.: Dot 4 has a higher boiling point than 3. Dot 4 has more favourable hygroscopic properties than 3 But, Dot 4 can cause problems with some rubber components, and has been reported by Toyota (and Honda too, from memory) due to it missing a specific polymer or lubricant additive. Therefore I used dot 3 when I fitted my brakes to the F15. Dot 5 is synthetic silicone based and is OK for new/overhauled brake systems that do not have any trace of 3 or 4 remaining in the system. Oh, yeah, there's a problem with dot5 in ABS systems from memory, just in case you were going to trick up the Blitz brakes! ![]() ![]()
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Howard Holgate F15 #12 F15A #13 (stretched) F60S #13 C15A #13 Wireless (incomplete) |
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