I'm very surprised by your numbers. I was making 6l/100km in VW Polo 1.4 without any effort, and less than 5l/100km with basic ecodriving techniques.
I'm almost sure that there's something wrong with your engine, maybe lambda sensor is messing up? Have you tested exhaust gasses recently?
You’ve mentioned that you have close ratio gearbox. Can you tell me what’s the engine speed let say at 100km/h?
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Quote:
Gerhard Plattner: "The best attitude is to consider fuel saving a kind of sport. Everybody who has enough money for a strong car, can drive fast and hit the pedal. But saving fuel requires concentration, self-control and cleverness. It's a challenge with the nice effect of saving you money that you can use for other more important things."
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