I usually shift at about 3k-4k rpm. I've lost about 60km per tank with winter gas now, and I've only pushed the car once since it's been winter gas.
I assume you're also breaking the car in right now. That would probably affect it. It's better to rev a little higher with less of a load than it is to force the engine.
So it's better to rev to 4k while not pushing the pedal too much than it is to shift at 2k then put your foot to the floor to try and go faster.
Also, as you learn the car you'll see where the power is and when you should shift.
Veux tu une explication en francais?
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