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[brian36]

so earlier i asked about the temp gauge dropping under where it normally sat. before usually about 85/90 it has done for yonks. anyway it started dropping down to just over 80. i have replaced hbv valve and coolant change and had aircon recharge but still doing it. i came back from a 800 mile trip to ayr yesterday and there and back with aircon on it sat about 80/85 only going up slightly to 90/95 when sat in traffic. the fuel consumption too was better going up as filled with shell and got 33/34 mpg but coming back filled at morrisons and got 30/31 maybe nothing but anyway temp gauge still same coming back,no overheating no puddles etc any ideas as temp gauge maybe lazy?

[dbug]

Replace thermostat

[05omegav6]

Sounds like the beginnings of a lazy thermostat but don't forget it has been a bit cooler this last couple of weeks