Q: How do you regularly change your oil and filter as part of a home mechanic's preventive maintenance on Ford F-250?
A: For preventive maintenance, regular oil changes are essential. Aging engine oil will become diluted and contaminated, leading to premature engine wear. This is because replacing the oil filter with each change has low costs and easy installation. Find the oil drain plug and filter without hitting hot exhaust parts. Return to running condition after starting it, let the engine warm up, and park it on flat ground which turns it off again. Make sure the car is safely raised; then put a glove on while removing the plug and place the pan below it. Ensure all of the oil has been drained out completely while checking for metal particles as well. Once dry, reinstall the plug as well as move the pan beneath the filter. At this point, apply some lubricant to the gasket of the new filter after tightening it with your hand, and then lower the car down. Add five quarts of fresh oil into it, check the level through the dipstick before finally starting the engine for a short time.