Can someone tell me what is causing this?
The car is not using any oil . Still really clear and no sign of emulsion under filler cap.
The coolant is not being used - this has gone brown with what I though was residual rust.
In the top of the expansion bottle there is some brown foam / looks like chocolate mouse
Does it just need a good flush or is it something more sinister?
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Click to see my build photos on Flikr
http://www.flickr.com/photos/67112582@N03/
Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.
Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.