[Healeys] Castrol GTLMA brake fluid

pennell at cox.net pennell at cox.net
Fri Feb 26 17:49:10 MST 2010


Bob,

I went looking for Castrol recently.  Could not find it in 3-4 parts stores.  What's up with that?

Keith

---- Bob Haskell <rchaskell at earthlink.net> wrote: 
> Folks,
> 
> Went looking for Castrol brake fluid and ran into two varieties: GTLMA 
> and GTLMA synthetic.  Different labeling; same part number.  An email to 
> Castrol USA got the following response:
> 
> "Castrol GTLMA now has a higher wet boiling point and the product label 
> has been changed. The product formula has not been changed; Castrol 
> GTLMA has always been a fully synthetic brake fluid. The wet boiling 
> point has increased from 3110F to 3290F (1550C to 1690C)."
> 
> So it sounds like you can mix the old and 'new' GTLMA.  However, it's 
> still DOT3/DOT4.  I wouldn't mix it with DOT5 synthetic.
> 
> Bob


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