way into your vehicle’s passenger compartment through the heating and cooling system. these are typically found under the dash. like the air filter, they’re changed based on a visual inspection. a dirty filter should be replaced, and while there’s no specific mileage where the swap must happen, it’s a good idea to take a hard look at this filter with the changing of the seasons.
fuel filters are placed with your vehicle’s fuel lines, and there’s usually more than one. your car or truck may have a fuel filter under the hood, under the car with the fuel line itself, or sometimes even in the gas tank. these filters make sure 