What are expenditures that keep a machine in good repair but that do not extend the useful life of a asset?

Expenditures that keep a machine in good repair but do not extend its useful life are typically classified as maintenance costs. These include routine repairs, servicing, and parts replacement that restore the machine to its operational state without enhancing its functionality or lifespan. Examples are oil changes, minor repairs, and regular inspections. Such costs are often expensed in the period they are incurred rather than capitalized.