Agree with ROGWICK. If you've been working it hard then idle for a bit. When I came off the track day, I had been doing successive laps at full power - then I let it idle to stabilize. But in normal urban running and when you are nearing your destination, drive gently and while manoeuvering and parking you have some time to let temps stabilize
BTW, don't rev a cold turbo engine from start up. Start with no throttle then let it idle to warm and let the idle settle down to near normal. Even in Perth at 0C this only takes about 30 seconds. And keep the revs and loads down until things are nice and warm and the guage has started to move well off the C mark.
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