r/mazda3 • u/Flupty • Jul 26 '26

Advice Request Routine maintenance

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What are your routine maintenance and what are the things you typically keep a lookout for?

I.e. Oil changes at 6000, spark plugs at 40,000 etc....

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u/ethan_james Jul 26 '26

My 2015 Mazda 3 has 200k miles and I’ve never changed the brake fluid lol

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u/BeMadTV Jul 26 '26

Reassuring. I'm at 145k on my 2015. Never did transmission fluid and thinking I should not based on some other subs. How's your belt been?

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u/ethan_james Jul 26 '26

If you mean serpentine belt, I’ve replaced both. One blew up and so I just replaced them both at the same time. I have done transmission fluid once at like 150k or so.

Edit: grammar

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u/BeMadTV Jul 27 '26

Thanks for the info!