Is Synthetic Motor Oil Better than Conventional?

AMSOIL synthetic motor oil 2015 Car Craft Nats Challenger

Yes. Test data repeatedly shows that synthetic motor oil outperforms conventional oil, delivering… Improved wear protection Better extreme-temperature performance Maximum fuel economy Longer service intervals Some of you are undoubtedly thinking, “But I’ve used conventional oil for years, and my engine runs fine.” It’s important to note I didn’t say all conventional oil is junk

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