How often do you change the fuel filter?
Every 30,000 miles.
Better answer: It really depends on the car. Many newer cars' fuel filter is in the fuel tank, and changing it is a $100--$200 expense (and the fuel tank may have to be drained). In newer cars, the recommendation is 30,000 miles, 60,000 miles, or more. Some cars do not include changing the filter as a matter of routine maintenance. Check the maintenance schedule for your specific car to get the best answer.
I personally change my fuel filter on all my vehicles every other oil change. But my fuel filters are about 5 to 10 bucks. Unless yours is outrageously expensive you should consult your owners manual. It will never hurt to change as often as you want but not to replace it often enough will result in poor gas mileage an maybe damage to the fuel pump itself. Plus you will have a lack of performance…