Join Date: Jun 2001
I recognise it, 13-14 litres per 100 km. But what I find strange is that it differs a lot from time to time. 12-12.5 is standard if I don't drive in city traffic, and in best case it can go below 10. But two weeks ago it set all time high with 18.9 with 150 km on the highway and the rest on the race track.
One thing that might differ is the chip version you have. Some owners of the early ones does not have the same experience with their cars and I think those cars does also have much better driveability at low rpms.
My conclusion is that the high fuel consumtion is caused by mostly by the slow response of the turbo and the ECU mapping, but also by the construction of the exhaust manifold, the the weight and by the transmission, epescially the rear differential.
The only way to easily get around the problem is to re-map the ECU (chip). I tried a chip from Evolution Engineering and found the fuel consumption decreasing by over 20% in normal driving and by 10% in hard driving despite the increased performace. Now this chip wasn't written for my ECU so it didn't work properly in all cases so until I bring the car for individual mapping I use the std. chip.
.. and of course, don't forget to drive on 98 oktan fuel!!! It makes big big differnce in fuel cosnumption.