Can I get oil change done with more than 3000miles?

I have a Honda Accord 2001 EX. I always do regular $25 oil at Firestone (stupid me, I don't remember its name). The technician told me I should get oil change done every 3000miles. But other people said it's just a myth. I'm not sure 'cause my car is not a new and latest model, so that rule might not work. Please help me clarify, thanksss!

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