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Quick Monthly Checklist
Spend 10 minutes each month walking around your vehicle and checking a few basics. This quick inspection can save you money on repairs and help prevent unexpected breakdowns.
Each month, try to:
- Wash your car and remove built-up grime.
- Check and top off engine oil and replace the oil filter at the recommended interval.
- Check or replace the fuel filter as recommended.
- Inspect the windshield wipers; replace the blades if they streak or chatter.
- Check and refill windshield washer fluid.
- Inspect tires for pressure and tread wear.
- Rotate and balance tires and have wheel alignment checked at the recommended intervals.
- Check, clean, or replace battery terminals and top up battery fluid if applicable.
- Inspect brake pads and listen for squealing, grinding, or vibration.
- Check or flush brake fluid as recommended.
- Check or flush transmission fluid at the recommended mileage.
- Check or flush power steering fluid.
- Check and flush engine coolant on schedule.
- Inspect or replace spark plugs if your vehicle is due.
- Inspect or replace the air filter.
- Inspect or replace the timing belt and other drive belts according to the manufacturer’s interval.
- Lubricate locks, latches, and hinges.
- Check all exterior lights and signals.
- Inspect rubber boots for cracks and replace as needed.
- Have electronics and systems such as ABS checked if warning lights are on.
- Read fault codes from the engine control unit if you notice drivability issues.
Following a basic maintenance checklist helps keep you on the road and out of the repair shop. Take care of your car, and it will take care of you.
- Wash your car and remove built-up grime.
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Air Filter Tips
A clean air filter helps your engine breathe better, improves fuel economy, and reduces harmful emissions.
- Check your engine air filter about every 6 months.
- Many drivers change the filter every 12,000 to 15,000 miles for preventive maintenance.
- Driving on gravel, dirt, or rural roads can clog a filter much faster, so you may need more frequent checks.
A slightly dirty filter actually filters more efficiently than a brand new one, because trapped debris helps catch smaller particles. But eventually, every filter becomes so restricted that airflow drops and fuel economy, performance, and emissions suffer.
How to check your air filter:
- Remove the filter and hold it up to a bright light.
- If it is heavily coated or caked with dirt, replace it.
- Shaking or blowing out the filter does not remove the dirt embedded in the fibers.
Some filters that look dirty are still usable, but if you are in doubt, replacing the filter is inexpensive insurance. During your next service, ask our technicians to inspect and replace your air filter if needed.
- Check your engine air filter about every 6 months.
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Belt And Hose Tips
Belts and hoses drive and carry many of the essential systems in your vehicle. A failed belt or hose can leave you stranded or cause serious engine damage.
- Have your belts and hoses inspected at least every oil change, or approximately every 3,000 miles.
- Technicians will inspect belts for glazing, cracking, peeling, soft spots, correct tension, and proper pulley alignment.
- For hoses, they check for leaks, cracks, bulging, hardening, or softening, and may also perform a pressure test on the cooling system to identify leaks or worn clamps.
Watch for warning signs like:
- Loss of power or hesitation
- Squealing or chirping noises from under the hood
- Visible cracks or fraying on belts
- Leaks or drips under the vehicle
If you notice any of these, schedule a belt and hose inspection before a minor issue becomes a major repair.
- Have your belts and hoses inspected at least every oil change, or approximately every 3,000 miles.
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Basic Car Care Services And Fluids
Taking care of a few key components will help your vehicle last longer and drive better.
Battery
Most modern batteries are sealed and maintenance-free, often lasting more than three years. The first sign you may need a battery is usually trouble starting the engine. If the engine cranks slowly or you hear clicking when you turn the key, have your battery and charging system tested.
Tires
Tire pressure and tread are critical for safety and fuel economy.
- Tires can lose about 1 psi of pressure per month and for every 10 degrees Fahrenheit of temperature change.
- Check pressure regularly using the recommended pressure in the owner’s manual or on the driver’s door jamb.
- Do not forget to check the spare.
Rotate tires every 6,000 miles to help prevent uneven wear, and have your alignment checked if:
- The car pulls to one side.
- The steering wheel is off-center while driving straight.
- You see uneven tread wear.
Replace tires when tread is worn or damaged.
Engine Oil
Oil lubricates internal engine parts, helps regulate temperature, and removes contaminants.
- Many owners follow a 3,000-mile or 3 to 6-month oil change interval depending on driving conditions and oil type.
- Follow your manufacturer’s guidelines, but remember that most of us drive in “severe” conditions, such as short trips, stop-and-go traffic, dusty roads, or hot weather.
To check the oil:
- Park on a level surface and shut off the engine.
- Pull the dipstick, wipe it clean, reinsert it fully, then pull it out again.
- The oil level should fall between the marks on the dipstick.
Add oil if needed, but do not overfill because that can damage the engine.
Transmission Fluid
Automatic transmission fluid (ATF) lubricates, cools, and operates internal parts. High heat and heavy loads can cause the fluid to break down over time.
- Many experts recommend changing ATF and the transmission filter about every 30,000 miles, unless your vehicle uses a specific extended life fluid.
- Check your owner’s manual for the correct fluid and interval.
To check fluid on many vehicles:
- The engine must be at operating temperature and running.
- Use the transmission dipstick or reservoir markings as directed in the manual.
Dark, burnt-smelling fluid can be a sign of overheating or breakdown and should be inspected as soon as possible.
Engine Coolant
Coolant (a mixture of antifreeze and water) absorbs heat from the engine and carries it to the radiator.
- Many vehicles require coolant replacement every 30,000 miles or every 2 to 3 years. Some extended life formulas can last up to 50,000 miles.
- Always let the engine cool before opening the coolant reservoir.
Check the translucent coolant tank and make sure the level is between the low and full marks. If you frequently add coolant, have the system inspected for leaks.
Power Steering Fluid
Power steering fluid helps you steer smoothly and quietly.
- Many vehicles recommend changing this fluid about every 3 years or 50,000 miles.
- Low fluid can indicate a leak, which should be inspected.
Some reservoirs are see-through, while others use a dipstick. Follow the instructions under the hood or in the manual.
Brakes And Brake Fluid
Brake fluid transfers braking force from the pedal to the wheels. Pads and rotors wear with use.
Watch for:
- Squealing, grinding, or scraping while braking
- Vibration or pulsation in the pedal
- A soft or spongy brake pedal
- Warning lights on the dash
Brake work is best left to professionals who have the proper tools and training to inspect calipers, rotors, pads, and hardware and to bleed the system correctly.
Air Filter
Most basic maintenance schedules recommend changing the air filter every 12,000 to 15,000 miles. A clean filter helps the engine breathe, improves fuel economy, and reduces emissions. If you drive in dusty or rural conditions, ask for more frequent inspections.
Fuel Filter
Replacing the fuel filter at recommended intervals helps prevent debris from clogging your fuel system and can prevent drivability issues such as hesitation or loss of power.
Windshield Wipers And Washer Fluid
Good visibility is a safety must.
- Replace wiper blades every 6 to 12 months, or whenever they chatter, streak, or leave areas unclean.
- Check washer fluid every week or so and keep it topped up.
Headlights And Brake Lights
Once in a while, start the car, leave it in park, and have someone walk around it while you operate the lights and signals.
- Check the headlights (both low and high beams), brake lights, tail lights, reverse lights, and turn signals.
Replacing bulbs can be tricky on some vehicles, and aiming headlights correctly is crucial. If you are not comfortable with the job, ask a technician for assistance.
- Tires can lose about 1 psi of pressure per month and for every 10 degrees Fahrenheit of temperature change.
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Cooling System Tips
Your engine generates intense heat during combustion and relies on the cooling system to maintain temperatures within control. Without proper cooling, even a strong engine can overheat and suffer serious damage.
Key parts of the cooling system include:
- Radiator
- Water pump
- Freeze plugs
- Head gasket
- Thermostat
- Hoses
- Heater core
- Fan clutch and radiator fan
- Radiator cap
The coolant mixture circulates through the engine, absorbs heat, and then flows back to the radiator, where air passing through the fins carries the heat away.
Maintenance tips:
- Replace coolant and flush the system regularly, often every 30,000 miles or 2 years, unless your vehicle specifies a longer interval.
- Inspect hoses and clamps for leaks, bulges, cracks, or soft spots.
- Make sure the radiator cap is functioning properly because it holds pressure and affects boiling point and stability.
Signs of cooling system trouble:
- Temperature gauge climbing higher than normal
- Steam or coolant odor from under the hood
- Coolant spots under the vehicle
- Frequent need to add coolant
Never remove the radiator cap on a hot engine. If you suspect a cooling system problem, schedule an inspection before the engine overheats.
- Radiator
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Engine Diagnostics Tips
Modern vehicles rely on computers and sensors to run efficiently. When something goes wrong, the Check Engine light is often the first clue.
It is a good idea to schedule a professional engine diagnostics check at major mileage intervals such as 15,000, 30,000, 60,000, and 90,000 miles, or any time:
- The Check Engine light comes on.
- The engine runs rough or stalls.
- Fuel economy drops suddenly.
- You notice unusual sounds or smells.
Diagnostic equipment reads fault codes and live data from the vehicle’s computer, helping technicians quickly and accurately identify the root cause. While some do-it-yourself tools are available, many repairs on newer vehicles require state-of-the-art equipment and trained technicians.
- The Check Engine light comes on.
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Oil Change Tips
Regular oil changes are one of the simplest and most important services you can do for your vehicle.
Many drivers follow these guidelines:
- Every 3,500 miles for conventional oil.
- Every 5,000 miles for synthetic oil.
- Or as recommended in the owner’s manual for your specific engine.
Real-world “severe service” driving includes:
- Frequent short trips under 10 miles.
- Stop-and-go city traffic.
- Dusty or gravel roads.
- Long highway drives in hot weather.
- Towing or hauling heavy loads.
For most of us, this means shorter oil change intervals are better.
Changing the oil regularly:
- Reduces wear on bearings, rings, cams, and valves
- Helps prevent sludge buildup
- Extends engine life and protects your investment
Oil Filters
Many factory recommendations suggest replacing the oil filter every other oil change. Because modern filters are smaller and hold less debris, most technicians recommend replacing the filter at every oil change to maintain the oil’s cleanliness.
Choosing And Replacing Filters
If you change your own oil:
- Always use the filter specified for your engine.
- Some engines require an anti-drain back valve in the filter to prevent oil from draining back when the engine is off.
- Follow torque specs and make sure the old gasket comes off with the old filter.
Disposing Of Used Oil
Used engine oil should always be recycled properly. Many service shops, quick lube centers, and parts stores accept used oil and filters for recycling.
- Never dump used oil on the ground, in the trash, or down a drain or storm sewer.
If you don’t have easy access to recycling, consider having your oil changed at a professional shop that offers this service.
- Every 3,500 miles for conventional oil.
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Tire Rotation Tips
Tire rotation involves moving each tire to a different position on the vehicle to evenly distribute wear and help your tires last longer.
Why tires wear unevenly:
- The front and rear axles carry different amounts of weight, especially in front wheel drive vehicles where the engine and transmission sit over the front wheels.
- Braking puts more load on the front tires.
- Turning causes the outside front tire to work harder, and right or left-hand traffic patterns can create side-specific wear.
- Misalignment, underinflation, or overinflation can also cause uneven wear.
Most manufacturers recommend rotating tires every 6,000 to 8,000 miles. Common rotation patterns involve moving the rear tires to the front and crossing the front tires to the rear, as long as the tires are not directional. Directional tires must usually stay on the same side and move only front to back, unless they are remounted.
Current best practice is to keep the tires with the best tread on the rear axle, regardless of whether the vehicle is front or rear wheel drive. This helps prevent oversteer and improves stability in emergency maneuvers.
- The front and rear axles carry different amounts of weight, especially in front wheel drive vehicles where the engine and transmission sit over the front wheels.
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Transmission Fluid Flush Tips
Transmission fluid does more than just lubricate. It also provides hydraulic pressure and cooling. Heat is the main enemy of transmission fluid.
Everyday driving can raise fluid temperature, and towing, mountain driving, heavy loads, or stop-and-go traffic can push temperatures even higher. As fluid overheats, it:
- Oxidizes and turns brown.
- Develops a burnt smell.
- Loses its lubricating and friction control properties.
- Leaves varnish on internal parts.
- Can harden seals, leading to leaks and pressure loss.
This cycle can eventually cause clutch failure and require a major overhaul.
To help prevent problems:
- Consider changing the transmission fluid and the filter about every 30,000 miles, unless your vehicle has a specific extended interval.
- Always use the fluid type specified on the dipstick or in the owner’s manual.
- Using the wrong type can cause harsh shifts or slipping and accelerate wear.
If you notice slipping, delayed engagement, harsh shifts, or leaks, have the transmission inspected promptly.
- Oxidizes and turns brown.
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Wheel Alignment Tips
Wheel alignment, also known as tracking, adjusts the angles of your wheels to ensure they meet manufacturer specifications and the vehicle drives straight without pulling.
Proper alignment:
- Reduces tire wear.
- Improves handling and stability.
- Helps keep the steering wheel centered.
You should generally have your alignment checked:
- Any time you install new tires.
- About every other tire rotation.
- If the vehicle pulls to one side.
- After hitting a large pothole, curb, or road hazard.
Primary alignment angles include:
- Camber, which is the inward or outward tilt of the wheel when viewed from the front.
- Caster, which affects steering feel and stability.
- Toe, which is the direction tires point relative to each other when viewed from above.
Modern alignment machines utilize cameras or sensors mounted on each wheel to measure these angles, enabling technicians to make precise adjustments.
- Reduces tire wear.
Car Care Videos
Prefer to watch instead of read. These short videos share practical tips for North Dakota driving and show how Trusted Tire & Auto stands behind every service.
Cold Weather Care Tips
Simple checks to help your vehicle start, stop, and steer safely when temps drop.
https://www.youtube.com/watch?v=OxwpRg8WtUQ
Quality Parts. Local Service. Extended Warranty.
Why we use quality parts, what the local warranty covers, and how it protects you.
https://www.youtube.com/watch?v=hanDdHnIHvc
A Few Winter Maintenance Tips from Trusted Tire & Auto
Quick winter preparation reminders for tires, fluids, and visibility before the snow arrives
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