Engine oil of a car should be replaced between every 3000 to 15000 miles depending on the vehicle model, age and mileage and driving conditions. The exact service interval, type and amount of oil is described in the vehicle's manual.
Replacing engine oil can be carried out within an hour that most of us with some DIY skills can perform and requires a handful of basic tools only.
Preferably service the car in a garage, otherwise choose a mild day with no wind as dripping oil can easily contaminate the road surface. Start the engine if cold for a minute to warm the oil for smoother drainage, but do not overheat.
Filter pliers are less likely to work due to space limitations and wrench chains provide considerably larger amounts of torque for turning a stuck filter