Probably one of the first safety tips to share when you're going to do an oil change on your car engine is to be ready for the oil spills, the grease, and the dirt. If you're a squeaky clean kind of person, then maybe you would rather bring your car to an auto repair shop and let them do that for you. But of course, changing the oil yourself is more practical and you get to save more money every year as change the oil periodically.
Now before starting out on the task of changing the oil in your engine, prepare the tools you need first. A preparation of all the things you need will make the job easier and with no hassle. You will especially need lots of old newspapers or cardsboards to cover the floor and protect it from spills. Oil filters, wrench set, an oil container, a funnel, and new oil are a given in this task, of course. Do not forget to wear gloves, too. Some people change the oil with bare hands but there is always the option of wearing gloves for extra protection.
Make sure that the spot where you're going to do the oil change has a level, flat, and solid ground. Drive around your neighborhood first to heat the oil and make it thin and easy to drain from the engine. Once your engine is warm enough, you can then park your car on the spot for the task at hand.
You can wait a while to cool the engine a bit. Thin oil that is easily drained is good but we would not want to burn our hands now, do we? Make sure you've placed your car in gear and the parking brake is set firmly. You can block the tires with a rock or brick for extra measure. You then jack your car up, but do not settle only for that. Use jackstands to keep the car aloft to help keep it firmly there. Do not get under the car unless you are very sure that the car is stable being held up.
Now with the car settled, the ground covered with newspapers or cardsboards, the tools prepared, and you protected with gloves and work clothes, you're ready for the task of changing the oil. Just remember to be careful when draining the oil since it may still be hot. Also make sure your face is out of the way when draining it.
When you're done with changing the oil and screwing the engine close, start looking for leaks. Start the engine and run it for five minutes or so while checking if there are leaks or not. Afterwards you can clean up. Throw the newspapers and oil containers away. Place the used oil and container in a sealed bag and take it to the gas station or oil recycling center.
Another important reminder is to remember that oil disposal should be done correctly. Improper oil disposal has been a hot issue, and is considered illegal and damaging to the environment. It is recommended that you drop your old and used oil at gas stations that will accept them, at no charge. There are regulations for proper oil disposal and people doing an oil change on their engines should be well aware of it.