Quote:
Originally Posted by saber
It shouldn't drastically change from summer to winter! Engines are designed to operate at a constant temperature, which is achieved after driving the car for several minutes.
Under normal driving conditions, a correctly functioning cooling system should keep the car running at approx the same temp all year round, regardless of whether the temperature is -5C or 40C.
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I use Edge 10-60 due to some abnormal driving.
I also service oil every 5k.
Under "normal" use in "normal" Australian conditions I reckon you can use most synthetic oils almost regardless of weight providing you allow oil to attain "normal" temps before hard acceleration/boost.