Done as regular preventative maintenance and one that can the home mechanic take care of is frequent oil changes. With age, engine oil becomes diluted and polluted thereby leading to early wearing out of an engine. Before you start, make sure that you have the right tools and plenty of rags or newspapers for soaking up spills. The plug for releasing the oil and the filter can be made more accessible by ascending the vehicle on a lift, driving it on ramps or supporting it with jack stands. If you have never changed this vehicle's oil before, find the drain plug for the oil as well as the filter while being careful about any hot exhaust elements. In order to park on a level surface and switch off the engine, let it run up to normal operating temperature first. Raise the vehicle so that its weight is supported by jack-stands ensuring your safety. Place a drain pan under an engine bottom plug, remove this plug using proper size box-end wrench or socket. Take a drain pan under an oil filter and loosen with a filter wrench. Remove block from filter tilting open end upwards to prevent spilling oil out. Rub off old gasket from mounting surface on block and leave none behind. Apply some engine oil to new filter's rubber gasket then hand-screw it in place firmly but gently at all. Do not forget to clear everything from beneath car; lower car afterwards. Pour four quarts of fresh oil through fill cap into engine but ensure that no fumes fill inside before doing that because it may result in injuries or death in case they are accidentally ignited. Let oil flow down into pan and inspect final level with dipstick before starting engine for leakages at pan plug and around filter area too mostly done on beginning cars like this one has just been changed again but when carried out within next 10 miles each day there will be less chance since they often occur after one stops driving his/her auto having completed near long trip only to realize this. Check if there are any leaks from the engine oil pan drain plug and around the new filter after starting the engine. The leakages will be tightened up if any. After a couple of minutes, check oil level once again using dipstick and add more oil if needed. Also, during first few drives after changing oil, keep checking for leaks and ensure that your level is correct. Old oil drained from an engine should not be poured onto ground or into a waste disposal system; rather it should be taken to an auto repair shop, gas station or an oil reclamation centre that accepts recycled oils.