Transmission Fluid

To protect your transmission and keep your car running for as long as possible, have the transmission fluid checked every 40,000 miles. In general, you don't need to replace it until you hit 100,000 miles, but if you don't check it and the fluid does burn out, it can ruin your transmission, a job that can cost more than $1,500 to repair on a Mazda.

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Air Filter

Mechanics will often try to convince you to change your air filter every time you change your oil. However, you shouldn't change your air filter more than once every 20,000 miles.

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Oil Changes

Change the oil in your Mazda every 5,000 miles. If most of your miles come from highway driving (driving at a set speed for long intervals of time), you may be able to change the oil every 6,000 miles, but if you do most of your driving in a city or suburban area, check your oil every 2,500 miles just to be safe. If the oil appears completely black, this is a sign that you need to have your oil changed.
If you change the oil yourself, remember to change the oil filter as well. If you take the car to a mechanic to have the oil changed, he should change the filter when he changes the oil.

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Review

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Myth: A dealership must perform regular maintenance to keep your car's factory warranty valid

Reality: As long as the maintenance items specified in the vehicle owner's manual are performed on schedule, the work can be done at any auto-repair shop. If you're knowledgeable, you can even do the work yourself. Just keep accurate records and receipts to back you up in case of a warranty dispute on a future repair.

Myth: Let your engine warm up for several minutes before driving

Reality: That might have been good advice for yesteryear's cars but is less so today. Modern engines warm up more quickly when they're driven. And the sooner they warm up, the sooner they reach maximum efficiency and deliver the best fuel economy and performance. But don't rev the engine high over the first few miles while it's warming up.

Myth: After a jump-start, your car will soon recharge the battery

Reality: It could take hours of driving to restore a battery's full charge, especially in the winter. That's because power accessories, such as heated seats, draw so much electricity that in some cars the alternator has little left over to recharge a run-down battery. A"load test" at a service station can determine whether the battery can still hold a charge. If so, some hours on a battery charger might be needed to revive the battery to its full potential.