https://www.iea.org/commentaries/oil-demand-for-fuels-in-chi... (March 2025).
"while China was responsible for more than 60% of global increase in overall oil demand between 2013 and 2023, it represented less than 20% of last year’s rise, largely as a result of its slowdown in fuel use."
It also says they used more oil in total, pushed by applications where it's not burnt. But that number is incompatible with other sources, so there's probably some totaling errors there.
Demand for "gasoil gasoline and jet/kero" has fallen, but it is offset by still-growing demand for "petrochemical feedstocks". The former is used for fuel, while the latter used for plastics.
[0] https://www.iea.org/data-and-statistics/charts/components-of...