Maintenance for your vehicle every nine months or 9,000 miles

Check through these nine items for your nine month interval maintenance on your vehicle. This checklist can be used after nine months of maintenance your vehicle or when your vehicle hits 9,000 miles since its previous maintenance.

To help maintain your vehicle on a more frequent basis, use our guides for monthly maintenance, maintenance every three months and maintenance every six months. For annual maintenance, here is the guide for you.

Maintenance Every Nine Months or 9,000 Miles

1. Automatic Transmission Fluid

Check fluid level with engine running and transmission in park. Automatic transmission fluid provides the hydraulic fluid used by automatic transmissions to function. By checking and maintaining this fluid, the transmission will stay lubricated and cool. If low, add the type of automatic transmission fluid specified in the owner’s manual and/or on dipstick. For maximum performance, change every two years or 24,000 miles, or as directed in owner’s manual.

2. Exhaust

Inspect for leaks, damage and broken supports or hangers if there is an unusual noise. Exhaust leaks can be dangerous and must be corrected without delay. A normal exhaust can last anywhere between two to three years, but it is best to stay on top of regular checks to avoid expensive problems.

orange gloved hands displaying corrosion dust that should be cleaned

3. Battery and Cables

Battery should be securely mounted. Battery connection should be clean, tight and corrosion free. If you notice corrosion on your battery, consider brushing the corrosion off with a wire brush after the battery has been disconnected. Never operate on a battery while it is connected. If the battery is three years old or more, it should be tested and replaced if necessary.

person showing how to install an new air filter

4. Engine Air Filter

Inspect filter at each oil change. Replace annually or when leaking, torn, water or oil soaked, dirty or showing other signs of wear. Other signs of wear include unusual engine sounds, service engine light, and reduced horsepower. To learn how to replace your air filter, check out this how to guide to get the job done right.

5. Fuel Filter

Inspect filter at each oil change. Fuel filters help refine the oil in your vehicle, and help with the absorbents in fuel that can contaminate your engine. Replace if restricted or water contaminated or once a year on cars with carburetors. On cars with fuel injection, replace filter every two years or 24,000 miles.

6. Power Steering Fluid

Power steering fluid assists the driver when turning the wheel. It is pressurized hydraulic fluid that protects o-rings and seals. Check the fluid with the car warmed up. Add correct type of fluid if low. If frequent topping off is required, inspect for leaks and replace if contaminated.

A person using a serpentine belt tool to loosen and remove the old belt before installing a new one.

7. Belts

Check V-belts and serpentine belts for looseness and condition. Replace when cracked, frayed, glazed or showing signs of excessive wear. Replace timing belt per interval specified in owner’s manual. Typically this is 60,000 to 90,000 miles. Not replacing the belt as required could cause a breakdown or serious engine damage.

8. Engine Oil And Filter

If nothing else, this is the step you should always check and maintain for basic car care. Check level with engine off at every fill up. For maximum engine life, change oil and filter every three months or 3,000 miles or as directed in your owner’s manual. Use specified oil grade and weight. If you are a driver that reaches 3,000 miles before three months, consider switching to a high mileage oil or read some of our trustworthy advice on the kind of oil you need.

Do you need to change your oil? Read our easy steps to changing your oil guide so you can get back on the road.

9. Hoses

Inspect hoses at each oil change and replace when leaking, brittle, cracked, rusted, swollen or restricted.

Car Care Council’s Service Interval Schedule*

AutoZone is pleased to offer the Car Care Council’s Service Interval Schedule.

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*The Car Care Council has developed a service interval schedule to provide general guidelines for the regular maintenance of passenger cars, mini vans, pickups and SUVs. Intervals are built around an oil change every 3,000 miles, an accepted recommendation for the majority of motorists who are severe service drivers. Always consult your vehicle’s owner’s manual for specific recommendations by the car maker.

Advice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.

Be sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Always chock your wheels prior to lifting a vehicle. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. Use caution when working with automotive batteries. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Do not wear ties or loose clothing when working on your vehicle.

FREE Loan-A-Tool® program requires returnable deposit. Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program.

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