Feel the engine and the car. What I'm doing is not blindly following the gear shift indicator. It tells me to shift to the next gear at 1600 rpm. If i do that, the engine will drop at idle speed. So according to the BC, the most economical RPM range is between 800 and 1600 RPM... But there is no power at all and acceleration takes way too long. Perhaps it works with larger 6 or 8 cylinder engines. But not with a tiny turbocharged 3 cylinder diesel.
But on the other hand, power (=working turbo) costs fuel. Or so the BC thinks ...
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