How Many Liters of Engine Oil Should Be Changed at One Time?
3 Answers
Around 3.5 to 5.0 liters. For high-displacement models with a 6-cylinder engine, approximately 6 liters are needed. Below are the functions and classifications of engine oil: Functions of Engine Oil: Engine oil lubricates the engine, reduces friction, assists in cooling, and minimizes buffering. It helps reduce wear on engine components and extends their service life. Classifications of Engine Oil: Engine oils in the market are divided into synthetic oil and mineral oil. The replacement cycle for full synthetic oil is longer than that for semi-synthetic oil and mineral oil. If a car uses synthetic oil, the replacement interval can be about 20,000 kilometers longer than with mineral oil.
When I first started driving, I knew nothing about oil changes except that they needed to be done regularly. It wasn't until after a few maintenance sessions that I learned the typical amount is 4 to 6 liters, depending on the car. My compact sedan's manual specifies 4.5 liters, and the technician always adds exactly that amount—no more, no less. Too little oil leads to insufficient lubrication, causing engine parts to wear out from friction and produce strange noises. Too much oil increases pressure, potentially leading to leaks or oil burning. Now, I change the oil every six months and also check the dipstick to ensure the level is between the high and low marks. Thanks to this good habit, my engine runs much smoother. Otherwise, repairs could cost thousands of dollars—definitely not worth it. Paying attention to these small details while driving can save you from big troubles.
As someone who frequently tinkers with cars, I find that oil capacity varies greatly, with engine size being the main factor. Generally, small-displacement cars like 1.6L models require around 4 liters for an oil change, while larger SUVs or pickup trucks can take up to 6 liters. Don't attempt DIY blindly—always refer to your vehicle manual for precise figures or consult knowledgeable friends. I've also experimented with different oil viscosities; the key is maintaining consistent volume. Too little oil can cause engine overheating and wear—I've seen fellow car enthusiasts experience sudden engine noise increases after underfilling. Too much oil can lead to foaming, compromising lubrication. When changing oil yourself, use the dipstick to check—aim for the level between the high and low marks. This detail affects performance, so don't overlook it.
