Synthetic motor oil

[Jazzy]

What are the benefits of using synthetic motor oil?

Does it improve gas mileage and reduce engine wear?

 

[Josiah]

Does it improve gas mileage and reduce engine wear?

Yes.

Enough to justify the extra cost? That's debatable.




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[Stravinsk]

If you want to keep gas mileage at a premium for your vehicle, keep your tires pumped to specifications and regularly clean/change your spark plugs (at least once a year). Oil changes (synthetic or otherwise) are necessary for keeping engine wear down.