Sorry, I don't know for this year. In 2022, in Okinawa I know the price of oil was high, it also increased for mainland also. This year I am in the process of taking my license driver for motorcycles in Japan so didn't drive yet ;) For consumer goods, bear in mind shops like Unicolo or Daiso do a pretty good job at keeping prices low. Toyota cars are still cheap too, I saw one, second hand, for less than 50 0000 JPY this weekend. So price increases at least currently is not dramatic. In many cases price increase is hidden in lower quality.