For best results, consult your owner's manual, but consider that your driving probably constitutes a severe maintenance schedule. Usually,
this means oil and filter changes every 3,000 miles or 3 months. If you change the filter yourself, dispose of it properly.
Take used filters to a
facility that accepts them. Used filters can be crushed, removing the used oil and the steel part of the filter can be recycled. The oil from one used,
seemingly innocent filter leaking into a landfill can taint 62,000 gallons of ground water.