I’ve got a Grand Vitara automatic 2.5. Had it nearly a year. It’s always been bad on fuel, but I thought I’d actually check this time. It’s done 102 miles on £45 Could anyone give me a suggestion on what could be wrong?

I don’t have many pics yet. I have a Suzuki Grand Vitara. Auto. Very bad on fuel. Hope to learn more now I’ve joined this site. Thanks for having me