Question

Technician A says that synthetic oils are generally less expensive than conventional engine oil because they use less crude oil. Technician B says that by using synthetic oil you can increase oil change intervals from 3,000 to over 50,000 miles. Who is correct?

Answer 1

The technician that is correct based on the information given is;

Technician B

• Synthetic oil is a better option to be used in engines because it has fewer impurities, it can last longer than conventional oils.

However, older cars or those with turbo engines may still require oil changes every 3,000 to 5,000 miles. Whereas, with Synthetic oils the change intervals are higher than that provided by conventional oils and could be as high as over 15,000 miles or just once a year depending on if the engine is not used much or not.

• Now, the technician A is saying that synthetic oils are less expensive, it is not true because they are generally more expensive as they last longer but technician B is correct because the change interval in synthetic oils is usually longer than that for conventional oils.

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