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					Originally Posted by Gilles  Monty,
 I also had several X1/9's and really love them, but grew older (and heavier) and do not longer fit comfortably in it.
 
 The expansion tank on the X1/9 that you are talking about are made of stainless steel and worked great! Still have one somewhere on my garage
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Was yours a replacement? Mine I'm sure was brass, turned a nice moss green where the hole formed. Don't think SS would have corroded. But yes that was a really fun car to drive.