I`ve noticed something interesting when running on lpg.
It seems that I get better FE going 100 to 110 km/h than going 80 or 90.
I think that it is because the lpg ecu has some problems in the lower rpm. At 105 km/h the engine stays at about 3000 rpm. That is the peak torque rpm - so it seems that the lpg gets along better with the overall car configuration at that rpm.
If I run on gasoline, I get better FE at about 85-90 km/h.
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