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All pictures and texts in this web page are the property of nomaallim.com. Any use of any part of those contents without the written consent of nomaallim.com shall be subject to legal procedures as per international and local laws in the concerned country. Using the name "nomaallim" or "nomaallim com" or "nomaallim.com" in the text describing the unauthorized copied content shall not constitute an exception and shall be sanctioned in accordance to the effective laws and proceedings.
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DISCLAIMER:
Our pictorials are of informative nature and do illustrate works carried out by ourselves at our own premises for our own use and satisfaction.
Readers who envisage to carry out similar works inspired by the below method shall do this at their own risks and liability.
Our pictorials are of informative nature and do illustrate works carried out by ourselves at our own premises for our own use and satisfaction.
Readers who envisage to carry out similar works inspired by the below method shall do this at their own risks and liability.
Manufacturer's recommended oils
STEP 1: Find the recommended motor oil for your vehicle.
This could not be an easy exercise since car manufacturers often do not clearly state the oil grade and quality in the user manual.
They would simply ask you to use the "recommended motor oil".
Labels found in engine compartment would also point to brands of products with no further details.
You need to search the web using your engine model, vehicle model or more generally recommended oils chart by the car manufacturer for its range of engines and find the info as issued by the car manufacturer (OEM), NOT the motor oil site.
This could not be an easy exercise since car manufacturers often do not clearly state the oil grade and quality in the user manual.
They would simply ask you to use the "recommended motor oil".
Labels found in engine compartment would also point to brands of products with no further details.
You need to search the web using your engine model, vehicle model or more generally recommended oils chart by the car manufacturer for its range of engines and find the info as issued by the car manufacturer (OEM), NOT the motor oil site.
As an example, the below chart lists the OEM recommended motor oils for PEUGEOT engines:
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STEP 2: Find the OEM recommended motor oil data sheet
Once you are sure of:
Search and download the product data sheet. The data sheet will show the below oil characteristics as a minimum: |
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Building your own motor oil equivalent chart
Now the problem is that the OEM's recommended engine oil could not be available in your country or at your car service workshop.
Or, you simply wish to find cheaper alternative oils that are equivalent to the OEM's recommended ones.
Proceed as follows:
Or, you simply wish to find cheaper alternative oils that are equivalent to the OEM's recommended ones.
Proceed as follows:
- Search within your country for the available oils of the same grade than the OEM recommended ones
- Download their datasheets or call the local distributor and ask for the data sheet.
- Build a comparative chart similar to the one below (click on image for enlarging). You may download a template further below.
- List the OEM oil characteristics in one or more column depending on how many oils are recommended (see "Reference Oils" column).
- List the other motor oils and mark with green the ones that match, orange the ones that could be used as a second choice and red the ones which are not at all equivalent.
- The criteria is to have close viscosity values, then equal or superior flash point.
- Buy and use any of the reference oils as given by the OEM or the equivalent products you found. You are now sure to safely drive your vehicle.
Click to download an empty template you can use to compare your motor oils (Excel 2007):
| motor_oil_template_l.xlsx |
REMINDER OF THE OIL SELECTION CRITERIA:
Viscosity values of alternative oil within +/- 10% of the reference oil
Flash point of alternative oil > (or =) Flash point of reference oil
Viscosity values of alternative oil within +/- 10% of the reference oil
Flash point of alternative oil > (or =) Flash point of reference oil
You may also check our general indicative uses of motor oils based on the grades chart:
Buy your motor oil here:
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See also...
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