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Full Version: How often should I really change my oil with modern synthetic oils?
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The whole oil change intervals debate has me confused. My car's manual says 10,000 miles with synthetic, but my dad still insists on 3,000 miles. With modern synthetic oils and better engine technology, what are the realistic oil change intervals that won't damage my engine?

I want to save money but not at the expense of my engine's longevity. Are there specific conditions that should shorten oil change intervals, like frequent short trips or extreme temperatures?