Can I switch to synthetic motor oil and go back to normal? Car doctor

Q: I have a 2008 Toyota Highlander V6 equipped limited edition with 74,000 miles that runs great. Can I switch to synthetic oil if I’ve used regular oil since the car was new? Is there an advantage to changing the oil at this stage of the car’s age? I was told that if I changed I could not go back. Is this true?

A: Synthetic oil has the added benefit of improved lubricity which helps minimize cold engine wear. Also, synthetic oil will help start in cold weather and is more resistant to oil breakdown in hot weather.

When it comes to switching, you can freely switch from synthetic to semi-synthetic oil to regular oil without any problems.

I recently had Michael Thomas from Pennsylvania on my radio show talking about this issue. You can find the Car Doctor podcast at or on most podcast sites.

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