You may think you're saving money by forgoing that oil change, but think again. Skipping even one routine oil change can result in engine wear, so stick to the schedule. Be a car detective. Get in the habit of regularly popping the hood and checking for unusual sounds, sights or smells that may tip you off to problems. Look out for things like bulging hoses or cracked belts. If you're mechanically inclined, you may even be able to fix minor problems yourself with the help of the vehicle service manual. Don't cheap out on parts. If you try to cut costs by buying used or off-brand parts, you may end up paying the price in the long run. You may inadvertently cause damage to the car by using parts or fluids that don't meet the specifications of the manufacturer.
How to maintain Engine in a car?
• Regular oil changes are very important to keep your engine in a good shape.
• Wash your car regularly, wax it once in a while to keep the car body shiny and free from corrosion.
• Take care of any minor concerns as soon as you can, so it won't cause serious problems and an expensive repair later.
• Use only original parts
How to check the engine oil?
Place your car at the level spot. Stop the engine. Wait for a while to let the engine oil to pour down to the oil pan. Pull the engine oil dipstick. If you don't know where is the engine oil dipstick, check your owner's manual, usually it has a bright handle saying "engine oil"
Wipe it off with a clean rag or tissue. Then insert it back all the way down into its place.
Now, pull the dipstick again and check the oil level. Normally it should be at "FULL" mark. For example, here you can see that it's a bit lower. It's not a big problem yet, but it's better to top it up. Check the oil condition: If it's way too black, it's definitely time to change it. If it's slightly-brown, it's O.K. If it's dark-brown, but still transparent, it's admissible but it's better to change it soon.
If it's white (coffee with milk color) it means the engine coolant mixes with the engine oil because of some internal engine problem, for example, blown head gasket - have your car.