Can my employer make me pay to wash my truck?

Generally, employers cannot require employees to pay for necessary work-related expenses, such as washing a truck, if it's essential for job performance. However, specific regulations may vary by state or country, so it's important to check local labor laws. If washing the truck is deemed a personal responsibility rather than a work requirement, your employer might be able to ask you to cover the cost. Always consult your HR department or legal resources for clarity on your specific situation.