Checking the engine oil is part of preventive vehicle maintenance. Oil in good condition helps reduce excessive fuel consumption and extends the engine’s service life.
In this article, learn in a clear and practical way how to correctly use the oil dipstick, when to check the oil level and what to do in abnormal situations.
What Is An Oil Dipstick?
The oil dipstick is a metal or plastic rod used to manually measure the engine oil level.
It is directly connected to the engine oil pan and is designed to provide a quick and reliable reading of the amount of oil present.
Although it is a simple system, it remains one of the safest ways to confirm that the engine has sufficient oil to operate correctly.
What Is The Oil Dipstick Used For?
The oil dipstick is used to check whether the engine oil level is within the values recommended by the manufacturer.
By observing the minimum and maximum markings, the driver can determine whether oil needs to be added or if there is excess oil.
This control helps prevent premature wear, overheating and serious engine failures.
Where Is The Oil Dipstick Located In The Car?
In most vehicles, the oil dipstick is located in the engine compartment and can be identified by a coloured handle, usually yellow or orange.
In more recent engines, especially in some premium models, the oil dipstick may not be present, as the level is monitored electronically. However, the majority of vehicles still use a physical dipstick.
Why Is It Important To Check The Oil Level?
Engine oil is responsible for lubrication, cooling and internal cleaning of the engine. When the oil level is incorrect, these functions are compromised.
Regular oil level checks allow early detection of leaks, excessive consumption or internal issues before they lead to more costly damage.
How Do You Read An Oil Dipstick?
To obtain an accurate reading, the vehicle should be parked on a level surface with the engine switched off. Ideally, wait a few minutes after turning off the engine so the oil can settle in the sump.
Then remove the dipstick, wipe it with a clean cloth, reinsert it fully and remove it again to read the level.
Does The Oil Level Affect Fuel Consumption?
Yes. An incorrect oil level increases internal engine friction, forcing the engine to work harder. This results in higher fuel consumption and reduced engine efficiency.
How To Know If The Oil Level Is Correct?
The oil level is correct when it is between the markings on the dipstick. Ideally, it should be close to the maximum mark, but never above it.
When Should The Oil Level Be Checked?
The oil level should be checked when the engine is cold or after it has been switched off for a few minutes.
Checking immediately after turning off the engine may give an inaccurate reading. It is advisable to develop the habit of checking the oil before long journeys or at least once a month.
What Happens If The Oil Level Is Low?
A low oil level reduces internal engine lubrication, causing increased friction, higher temperatures and accelerated wear of components.
If the situation persists, it can lead to serious engine damage due to oil starvation, such as engine seizure, bearing failure or crankshaft damage.
How Often Should You Check The Engine Oil?
Even in modern vehicles, it is recommended to check the engine oil every 1,000 to 2,000 km or once a month.
In older vehicles, high-mileage engines or cars that are mainly driven in urban traffic, oil checks should be more frequent.
What To Do If The Oil Dipstick Does Not Fit Properly
If the oil dipstick does not insert correctly, the dipstick itself may be bent or the guide tube may be obstructed.
Forcing it can worsen the issue, so the correct approach is to check alignment and replace the dipstick if necessary.
What To Do If The Oil Dipstick Breaks
If the oil dipstick breaks, you should avoid driving the vehicle, as fragments may fall into the engine and cause damage.
The solution is to remove the broken piece and replace the dipstick with one compatible with the engine model.
Are Oil Dipsticks Available In The Kroftools Catalogue?
KROFtools provides tools and equipment to support automotive maintenance, including solutions that assist with checking and maintaining engine oil in professional environments.
In the KROFtools catalogue, you can find the following tools:
1. Oil Dipstick Mercedes Set 4 Pieces
This set is designed to accurately measure oil levels in Mercedes engines that do not include a factory-installed dipstick.
It allows for correct readings during servicing and maintenance, making it a practical and essential solution for multi-brand workshops.
Click on the image to learn more about the Oil Dipstick Mercedes Set 4 Pieces (ref. 9750).
2. Oil Dipstick Audi
Designed for Audi engines without a factory-installed dipstick, this tool allows safe and reliable manual oil level checks. Ideal for quick diagnostics and preventive maintenance in professional settings.
Click on the image to learn more about the Oil Dipstick Audi (ref. 9755).
3. Transmission Oil Dipstick
Designed to measure transmission oil levels in compatible Audi models, this dipstick ensures accurate readings during maintenance operations.
Click on the image to learn more about the Transmission Oil Dipstick (ref. 9756).
What To Do If The Oil Dipstick Pops Out
If the oil dipstick comes out during engine operation, this may indicate excessive crankcase pressure or issues with the ventilation system.
In this situation, the oil level should be checked and a professional repair workshop should be consulted to diagnose the cause.
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