Winter tire experiences

[dadam93]

Hi,
I have an LC J250 2025, 2.8 diesel (non-hybrid) in Europe, Hungary.
Until now, I used the original Yokohama Geolandar summer tires. 2 weeks ago, I installed the Goodyear Ultragrip Performance 3 winter tires that I bought together with the car at the dealership (the same size, 265/60 R20).
Since the new tires were installed, the fuel consumption has increased by 1.5 litre/100 km, and the vehicle slightly steers to the right. Tire pressures are OK, I checked multiple times.
As this is my first winter with the car, is the fuel consumption increase due to the colder weather (here is 5 degrees Celsius in Hungary, not so cold btw...)? I think its too much for the weather...
Maybe the steering issue and the fuel consumption increase are from different reasons; I don't know.
Do you have any experience with these problems?

 

[SimplyAnAdventure]

Fuel mileage, at least in the states goes down this time of year for two reasons.

1) people “warm up” cars before getting in them, basically your not moving for 10 mins and the car is idling so that hurts mileage.

2) more importantly we swap to winter blend gas which just doesn’t have as much energy in it and get slightly worse fuel economy.

Additionally changing tires can always change efficiency as rotational mass and rolling resistance (check your tire pressures too!!). All effect performance.

As far as pulling to one side, unless one of your tire pressures is way off that’s alignment and shouldn’t have to do with tires. Good luck!!!