Hi, i am just joining in, as it looks like we have cars with same engine. (although I was never able to get as good tank as you). I am looking forward to see your progress, all good advices have already been posted before. Maybe one: Buy an OBD2 plug and install Torque Pro into your phone, or get any other instant MPG readout. It helps a lot. If you will discover how DFCO work in this engine, let us know please. From my observations it seems it kicks in only in 1500 to 2000 rpm area and under that ECU puts fuel to help engine running.
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