How to Check Oil Level in Car. Checking the oil levels in your car is essential to maintaining the life of the vehicle. It's one of the most straightforward bits of regular maintenance you can perform in your vehicle, important especially. How to check oil using the dipstick method? Before checking oil, you should always make sure that the engine isn’t hot to avoid burning yourself. If your engine was running, give it about ten minutes to cool off. A cool engine will allow the oil to settle at the bottom of the oil pan. Consequently, you’ll get a more accurate reading. How to Check Oil: Checking the oil level in your car is something that is so quick and easy to do and can save your car a lot of misery (and you a lot of $$) when done on a regular basis. Although experts recommend checking your oil 10 min after you've shut off. Keeping your engine’s oil at the correct level is one of the most important things that you need to do in order to ensure that your engine doesn’t suffer from premature part failures. You should look up how regularly your oil needs to be checked in your car’s service manual, although as a rough guide we’d suggest that you change it every 3,000 miles. By Deanna Sclar. You should check your car’s oil at least once a month to make sure that there’s enough oil and that it isn’t contaminated. Oil reduces the friction in your engine and keeps it running smoothly. When you check your oil, if it is dirty or smells of gasoline, it’s time for your oil to be changed.You should also check the levels using the oil dipstick – if you’re oil. This is how to check the oil level in a Mercruiser engine. I'm demonstrating using a Mercruiser 3.0TKS engine in a Bayliner 185 boat. Please feel free to sha. In order to run properly, a car needs oil. With no oil, too little oil, or old and worn out oil, an engine can be severely damaged or destroyed.Oil is responsible for lubricating all major components of the engine, reducing the wear and tear on the engine, and helping dissipate the heat generated by the engine. Periodically changing oil is necessary, and checking helps you know when to get an. Checking and Changing Engine Oil. CHECK YOUR OIL LEVEL FREQUENTLY! At Least Every Other Gas Fill Up. ~~~ Checking the Oil. Note: Volkswagen engines are designed to use a little oil when running, so checking the level often is very important. Run the engine until hot, then turn it off. Think of motor oil as the life’s blood of your car’s engine. Checking it on a regular basis is a key part of keeping your engine running well and getting the most miles out of it.