How often does differential oil need changed on 2002 Ford E350 van?

Answer 1

Do an oil change every 3000 miles or 3 months which ever comes first. Do a Transmission Fluid change and every 50,000 miles. Check air filter/change 30,000 miles. Get brake fluid flushed, change spark plugs if mileage warrants: 30,000 for regular plugs 60,000 for platium 90,000 for iriduim.

Check/change antifreeze, Check air pressure in tires do this once a month. Check rear end fluid change 50,000 miles look at brakes does it vibrate when you brake hard if so needs rotors turned, look at rear brakes adjust if need be, check Power Steering fluid

Ok this will get you started. ALWAYS check your fluids and tire pressure once a month. check brakes every three to four months. Do a walk around once a week just to be sure.