2013 Ford Flex with

My Uncle told me he had some 22" rims with tires that has been sitting in his shop for about a year. They didn't fit his truck so he just put them aside and kind of forgot about them over time. So he said I could pretty much have them if they fit. So I went to his shop to take a look. And what do you know they fit. They are DIP rims 22x9.5, tires are 265/35 R22, stock ride height. I don't know much about rims so i don't know anything about that brand, but I think they look pretty good.

I do have one question though. After putting on the rims and driving for a little while, my fuel gage has been way off. Even went from 77 miles to empty to 0. When I filled up I still had about 7 gallons left in the tank. Is this something that is normal since the size of the rims and tires increased?