GulfSeven Posted July 27, 2021 Share Posted July 27, 2021 After my expansion bottle cap failed at the Williams Charity Track Day today (fortunately the Williams mechanics were on hand to diagnose and replace) I found myself checking the coolant after each session. On track, the level seems to go up by a couple of centimetres. Under normal road driving (and when parked up), the level sits on the max line. Does that all sound normal? Link to comment Share on other sites More sharing options...
Dixa1225 Posted July 27, 2021 Share Posted July 27, 2021 Normal for a sigma engine. Link to comment Share on other sites More sharing options...
alcal Posted July 28, 2021 Share Posted July 28, 2021 Mine does that. I'd love to know why. Link to comment Share on other sites More sharing options...
GulfSeven Posted July 28, 2021 Author Share Posted July 28, 2021 As long as it's normal I'm happy Link to comment Share on other sites More sharing options...
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