When you drive a car, the engine oil plays a vital role in protecting the engine from wear. You might never see it or need to worry about it, but it’s crucial to keep your engine in good condition by having optimal clean engine oil.
Whether replacing it or just checking the oil level, knowing how it works is vital if you don’t want any problems with your car. If you’re wondering what happens if you drive a car without oil, here are some things you should know.
1. How does oil works in an engine?
To understand what happens if you drive your car without oil, we first have to look at what role oil plays in an engine. Your car’s engine is a complex piece of machinery and needs to be well maintained.
Oil aims to protect your engine’s internal parts from friction and heat. Engine oil helps keep all the parts clean while moving around inside the engine, which helps prevent overheating and wear on those parts. Engine oil also cushions the blow of mechanical shock when parts come into contact with each other during normal use.
Oil also prevents rust and corrosion by keeping water away from metal surfaces. Over time, moisture can build up inside an engine without enough oil to remove it — this causes rusting around any exposed metal surfaces, damaging them permanently if left untreated.
Without oil, these parts will wear down over time and cause severe damage to your vehicle.
Read more: Can You Mix Oil Brands? Top 6 Engine Oil Facts
2. What happens if you drive a car without oil?
If you have driven a car without oil, there will be no lubrication on the part of the engine where friction occurs between moving parts. Although the car may start for a few seconds, the absence of oil in the engine will cause too much heat and destroys metal parts inside. If left unattended, this can seize your car’s engine in seconds or minutes.
If you drive a car without oil, you’ll likely hear a loud screeching sound shortly after starting up. That’s because the metal parts of your engine are slamming into each other due to a lack of lubrication. The damage is immediate — and severe.
The engine will lock up and stop running, but not before severe damage has been done. Without oil, there will be no lubricant to prevent friction and heat from building up in the engine, which is why it’s so important to always check the oil level before driving anywhere.
If your car doesn’t have enough oil, it could seize up in seconds — causing thousands of dollars in repairs or, worse yet, an accident. You’ll also have problems with your brakes, hear excess noise, and DTC codes.
Related: Driving With Bad Oil Pressure Sensor – Why is it Unsafe?
3. What is a seized engine
A seized engine is an engine that is no longer functioning due to a mechanical failure. The term is most commonly used to describe an engine that has failed due to overheating or lack of oil.
A seized engine can be repaired, but it is sometimes not worth it. A typical engine rebuild costs between $2,500 and $4,000 in parts and labor. If the engine is old and has been used for many years, replacing it with a new one may be cheaper than repairing the old one.
A mechanic can inspect your car’s engine and tell you whether it would be cost-effective to repair.
4. Symptoms of low oil in a car
If you are driving a car that is already low on oil, it can cause severe damage to the engine. If you don’t notice the problem and take action immediately, it could be too late for your car. You should know about the common symptoms of low oil levels to act on them and refill your car’s engine with more oil.
If you’ve ever wondered what the symptoms of low or no oil are, here’s a list of common signs that your engine needs more lubrication:
Low oil level warning light
If you drive a modern car, the warning light on your dashboard will likely illuminate if there is low or no oil in the engine. This is why it’s essential to check your car’s oil level before every journey, even if you’ve just refilled it.
Burning Oil Smell
If you notice a burning smell coming from under the hood or from inside your vehicle, this may be caused by low oil levels. If there isn’t enough lubrication in the engine, then parts of it may start to wear away, which produces heat and friction — leading to a burning smell.
It’s unlikely that an engine with low levels of oil will run smoothly for long without causing damage. As soon as you notice strange noises from your engine, especially if they increase when you accelerate or decelerate, it’s worth investigating the cause.
Your car has low oil levels and will not perform as well as it should. This happens because there isn’t enough lubricant to protect the moving parts inside your engine. You may notice that it takes longer for your car to accelerate, and if you drive at high speeds, you may see that it shakes more than usual.
No oil on the dipstick
A dipstick shows whether there’s enough oil in your car’s engine by measuring how far up the stick the oil reaches room temperature. Suppose you don’t see oil on your dipstick after running your car for 10 minutes. In that case, that’s a sign that you need to add more motor oil immediately — before damage occurs!
Related: Oil in the Spark Plug Well – Causes and DIY Fix
You should change the oil in your car regularly, but avoiding a seized engine should be at the top of that list! As it turns out, driving a car without oil is something you don’t want to do. Always check your oil levels to ensure they are at the correct level.
Change your oil regularly, and learn to recognize the signs of an engine with low oil so you can prevent your car’s engine from seizing. With diligence and care, you shouldn’t have any engine problems.
Elevate your car maintenance game by reading our comprehensive guide on engine oil. Learn everything from the basics of oil types, to how to properly maintain and change it. Keep your vehicle running at its best, read our guide now!