Can I use any detergent with my SPX160E-MAX pressure washer?

No, you should only use detergents that are specifically designed for pressure washers. Some recommended detergents include Sun Joe® HOUSE +DECK WASH, Sun Joe® SNOW FOAM AUTO WASH, and Sun Joe® HEAVY DUTY CLEANER. Avoid using household detergents, acids, alkaline solutions, bleaches, solvents, flammable materials, or industrial grade solutions, as these could damage your pressure washer.