508 Fuel Problem

First of all hello my new vehicle I bought 2012 e-hdi 1,6motor 508 allure 18inch wheel.
my previous car is 2012 e-hdi 1.6 508 17 inch rim active ..
my previous vehicle was pert ...
I just bought it. but I have a very bad fuel problem.

My old vehicle rarely burned 5 liters of max city within 5 kilometers of the city on the long road.
My current vehicle burns between 9-10 in a 6-liter city on the long road at 100 kilometers.

I also tried something, I reset the average to set what the car would normally burn while stopping and started off.
I went 2 kilometers. It was 11.2. then I wasted and started to wait. the vehicle is up to 12 ..
I normally say that it is not possible to go to that level when it is idle. I wonder what the 18inch 508 ones are burning. I will consult with a service on Monday.
I expect ideas from those who have had problems or have knowledge. Teşekürler.

It can be said that the rim tire can notice this much ..

The average fuel increase is also normal where it stops .. Because the vehicle is going at 0 km speed and it is still burning diesel.

Since it is 2 kilometers, you can see that it is rising. Sometimes I do it 1 km in winter, then it stops, I watch it warms up and the fuel average rises.

[QUOTE = ggitaristt] It can be said that the rim tire can notice so much ..

The average fuel increase is also normal where it stops .. Because the vehicle is going at 0 km speed and it is still burning diesel.

Since it is 2 kilometers, you can see that it is rising. Sometimes I do it 1 km in winter, then it stops, I watch it warms up and the fuel average rises.
[/ QUOTE]

It is increasing while standing, but it was abnormal to go up to 12, even if it was the busiest traffic in the past, it was hard on my old vehicle. I think it's not from osebele rubber. The start stop was always closed in the past. while stopping, it was fixed between 6-7. I use it at the start stop right now fuel is burning almost 9 gasoline in the normal city.

My current tire size is 235/45/18 old 215 55 17, I don't think it would be 3 or almost 4 liters of the tire with so few different tires. I called the master room, 1 liter plays the most, he said ... I wonder if there is anyone who has the problem when I go to the master I will take on weekdays.
I can also direct the master to both ...

Hello,

I tested the effect of 16 "17" wheels on fuel consumption on my 407 car. https://forum.peugeotturkey.com/forum_posts.asp?tıd=48020&title=215x55x17

[QUOTE = Liko61] Hello, [/ QUOTE]