When I drive to work, every morning, it is around -6 to -2 degrees C. Back home it's around 4 degrees C.
Tested for a week without the intercooler cover, average for the week (And a tank) was 5.6lt/100km
Next week, same driving (Even colder weather) with the intercooler cover in place, average over the entire tank 4.8lt/100km
I drive 1,000km each week. (Working 7 days a week at the moment)
I've proved time and time again that the i30 CRDi diesel increases it's fuel consumption when the ambient air temp drops below 10 degrees C.
A email to Hyundai Australia has shown they did not even read my email properly, in stating that the i30 will get better fuel economy when the air temp is colder, due to the air being more condensed. (This we all know and understand)
What I don't understand is why this is completely irrelevant with regards to the CRDi i30.