Burning determined by refueling to a full and different rides city route quickly slow problem lasts for a year the weather does not affect combustion.
On-board computer shows combustion from 6.5l to 8.5l per 100km
The car is strong, no problems with firing, no dpf or fap does not take oil at a standstill, no stains under the car.
I still have 2 cars on ON 1.9 jtd and 1.6 hdi burning at 6l