What grade of oil should I use in my car?

Answer 1

here are some information about oils.

you can use multigrade oil 20W 50 or 20W 40, API SH or API SJ. and your oil change interval depend on your cars engine condition and the fuel consumption.

please read the following for general information.

Please refer to the API Classification.

S for Service, SE, SF, SG, SH, SJ and SM

C for Commercial. CD, CE, CF, CF-4 etc.

The higher the classification grade the higher the lube oil quality and the longer you can use the oil.

The less fuel consumption the longer the lube oil change interval.

well actually the lube oil change intervals are dependent on many factors, the engine condition, Oil grade and the fuel consumption.

so basically you can use any of the above oil but your lube oil change interval will depend on what grade you select, fuel consumption and engine condition.

Please select the right viscosity for your climate, winter grade will be better for all climates. There are single viscosity and multi - viscosity grades.

SAE30, SAE40, SAE20W 40 etc W here stands for winter and the operating climate temperature range is between -20 to 40 degree Celsius.

API oil grade reference:

http://www.le-international.com/uploads/documents/051_Current%20API-SAE%20En