What is the difference between SAE oil and synthetic oil?

also, how often do you have to change each?What is the difference between SAE oil and synthetic oil?
synthetic is betterWhat is the difference between SAE oil and synthetic oil?
SAE is the Society of Automotive Engineers.


Among other things, they develop standards for automobiles.





The API (American Petroleum Institute) specifies oil grades.





Regular motor oil is refined from petroleum oil. It's also called mineral oil, since it comes from underground petroleum deposits.





Synthetic oil is a lubricant which is synthesized from feedstock hydrocarbons, such as natural gas, coal, oil shale or bituminous tar sands.





You change the motor oil based on your vehicle manufacturer's service recommendations for standard or severe usage conditions.





For mineral oil, most cars can operate with an oil change interval of up to 5000 miles. Severe use would recommend changing oil at 3000 mile intervals.





For synthetic oil, standard operating conditions could permit an oil change from 10-15,000 miles. Or 7,500-10,000 miles for severe usage conditions. But it would be best to check your owner's manual.
Synthetic is man made from man made materials such as plastics and rubbers, etc; SAE is naturally occurring oil that has been refined.





Synthetic usually runs cleaner, is better for your engine, but more expensive.





Every oil can be different as far as changing them at certain times.








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