3.How to Check Your Engine Oil Level
Checking your engine oil level is one of the simplest maintenance jobs you can do at home. It only takes a few minutes, but it can help protect your engine, spot potential problems early, and avoid unnecessary damage caused by running low on oil.
Engine oil keeps moving parts lubricated, helps control heat, and carries away dirt and deposits inside the engine. If the oil level drops too low, the engine may not be properly protected. If the oil is old, dirty, or the wrong specification, it may not do its job as effectively.
This guide explains how to check your engine oil level, what to look for, and when it may be time for an oil and filter service.
Why Checking Your Oil Level Matters
Your engine relies on oil every time you start the car. Even if your car feels like it is driving normally, the oil level can slowly drop over time.
Some engines use a small amount of oil between services. Older engines, high-mileage vehicles, turbocharged cars, and cars used for lots of short journeys may use more oil than expected.
Low engine oil can lead to:
Increased engine wear
Poor lubrication
Higher running temperatures
Warning lights on the dashboard
Expensive engine damage if ignored
Checking the level regularly helps you catch problems before they become serious.
When Should You Check Your Engine Oil?
A good habit is to check your oil level every few weeks, especially before a long journey. You should also check it if:
The oil warning light comes on
The engine sounds noisier than usual
You notice oil spots under the car
Your car has recently had a service
You have bought a used car
You do lots of motorway driving or short trips
Always refer to your vehicle handbook, as some cars have specific instructions for checking the oil level.
How to Check Engine Oil Using a Dipstick
Many cars have a dipstick under the bonnet. This is usually a long metal or plastic strip with minimum and maximum marks near the end.
1. Park on Level Ground
Make sure the car is parked on flat ground. If the car is on a slope, the oil may sit unevenly in the sump and give you an inaccurate reading.
2. Let the Engine Settle
Switch the engine off and allow the oil to settle. Some cars should be checked when warm, while others are best checked when cold, so check your handbook if you are unsure.
As a general rule, waiting a few minutes after switching the engine off allows the oil to drain back down into the sump.
3. Open the Bonnet Safely
Open the bonnet and secure it properly. Make sure the engine bay is safe to work around and avoid touching hot parts.
4. Remove the Dipstick
Pull the dipstick out carefully and wipe it clean with a cloth or paper towel.
The first reading may not be accurate because oil can splash onto the dipstick while the engine is running.
5. Reinsert the Dipstick Fully
Push the dipstick all the way back into its tube, then pull it out again.
6. Read the Oil Level
Look at where the oil sits between the minimum and maximum marks.
The oil level should usually be between these two marks. If it is close to or below the minimum mark, the engine may need topping up with the correct oil.
Do not overfill the engine. Too much oil can also cause problems.
What If Your Car Does Not Have a Dipstick?
Some modern cars use an electronic oil level sensor instead of a traditional dipstick. In this case, the oil level is usually checked through the dashboard menu or infotainment screen.
The process varies by vehicle, so follow the instructions in your handbook. The car may need to be parked level, warmed up, or left for a set amount of time before it gives an accurate reading.
What Colour Should Engine Oil Be?
Fresh engine oil is usually golden or amber, although this depends on the type of oil. Over time, oil becomes darker as it collects dirt and combustion deposits.
Dark oil does not always mean something is wrong, but very dirty, gritty, thick, or contaminated oil may be a sign that a service is overdue.
You should pay attention if the oil looks:
Very thick or sludgy
Milky or creamy
Gritty
Burnt-smelling
Extremely low shortly after topping up
Milky oil can sometimes suggest coolant contamination, so it should be checked further rather than ignored.
Should You Just Top Up the Oil?
Topping up the oil may be fine if the level is slightly low, but it is not the same as carrying out an oil and filter service.
During an oil service, the old oil is drained out and the oil filter is replaced. The filter is important because it traps dirt and particles that build up as the engine runs.
If the oil is old or the filter is clogged, simply adding fresh oil will not fully refresh the system.
That is why regular oil and filter changes are one of the most important parts of car maintenance.
Always Use the Correct Oil
Not all engine oils are the same. Your car needs the correct oil grade and specification for the engine.
Using the wrong oil can affect lubrication, fuel economy, emissions systems, and engine protection. This is especially important for modern engines with turbochargers, timing chains, diesel particulate filters, or manufacturer-specific oil requirements.
Before topping up or servicing your car, always make sure the oil matches your vehicle’s requirements.
When Is It Time for a Service?
Your car may be due for a service if:
The oil is old or dirty
The oil filter has not been changed recently
The service warning is showing
You cannot remember when the last service was done
The car is used for lots of short trips
You have recently bought the vehicle
The engine oil level keeps dropping
A service kit makes the job easier because it brings together the correct oil and service parts for your vehicle.
Final Thoughts
Checking your engine oil level is quick, simple, and well worth doing. It helps protect your engine and gives you a better idea of your car’s condition between services.
If your oil level is low, your oil is dirty, or your service is overdue, it may be time to replace the oil and filter rather than just topping up.
At EasyServiceKits, you can find the correct service kit for your car by entering your registration number. No guesswork, no hunting around for part numbers — just the right oil and filters matched to your vehicle.
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