My general observation is that the "normal" temperature is about 90°C. The high speed fan switches on at about 92°C and on hot days the temperature hovers around 100°C. It actually drops a bit when the aircon is on because the aircon radiator is pre-cooling part of the air before it hits the engine radiator.

I would think 80°C quite low but I would not be overly concerned if the ambient temperature is under 10° and the load is light.

The Omex ECU is set to recognise anything below 70°C as cold running.

Peter

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