Guide cluster
Car maintenance, explained plainly
Most vehicle failures are preceded by a symptom or a missed service interval. Knowing which fluids and wear items have a schedule, and which symptoms mean stop driving now, prevents the majority of expensive repairs.
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Car maintenance
Maintenance advice is usually either too vague to act on or so specific to one vehicle that it does not transfer. These guides aim for the middle: what a system does, how it fails, what the warning signs are, and roughly when to expect the work.
None of it replaces your vehicle’s own maintenance schedule, which is the authority for your specific car. Use these guides to know what questions to ask.
Every guide
Start with the question you actually have
Each guide answers one question completely, then points to the next decision it raises.
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Car maintenance schedule by mileage
What maintenance does a car need at each mileage interval?
Most vehicles follow a repeating pattern: engine oil and a tire rotation every 5,000 to 10,000 miles, cabin and engine air filters and brake fluid around 30,000, spark plugs and transmission fluid between 60,000 and 100,000, and coolant, belts, and hoses by 100,000. Your vehicle’s own schedule overrides every general figure.
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How often should you change your oil?
How often should you change your oil?
Most modern engines running full synthetic oil go 7,500 to 10,000 miles between changes, and many go 5,000 on conventional or synthetic blend. Short-trip driving, towing, and heavy idling shorten that. Follow your vehicle’s oil life monitor or manual, and change the filter every time.
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How long brake pads last and when to replace them
How long do brake pads last and when should you replace them?
Brake pads typically last 30,000 to 70,000 miles, and stop-and-go driving pushes them toward the low end. Replace them when friction material reaches roughly three millimeters, when a wear indicator squeals steadily, or immediately if you hear grinding, feel a pulsing pedal, or the pedal sinks toward the floor.
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When should you replace your tires?
When should you replace your tires?
Replace tires when tread reaches 2/32 of an inch, which is the legal limit in New York and the point the built-in wear bars sit at, though wet traction falls off sharply below 4/32. Replace them regardless of tread once the DOT date code shows they are six to ten years old, or if there is sidewall damage.
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What the check engine light actually means
What does the check engine light mean?
A steady check engine light means the engine control module has stored a fault code and something is outside its expected range, often emissions related. A flashing light means an active misfire that can destroy the catalytic converter within minutes. Stop driving and call if it flashes. A steady light needs diagnosis, not a guess.
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How long does a car battery last?
How long does a car battery last?
A conventional car battery lasts three to five years in this climate, and heat shortens its life while cold exposes it. Have it tested annually once it passes three years. Slow cranking, headlights that dim at idle, or a battery warning light mean have the battery and the charging system tested before it fails to start.
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What to do if your car overheats
What should you do if your car overheats?
Pull over as soon as it is safe, shut the engine off, and do not open the radiator or reservoir cap while the system is hot. Overheating warps cylinder heads and destroys head gaskets within minutes, so continuing to drive turns a hose or thermostat into an engine repair. Let it cool completely, then call.
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When transmission fluid needs changing
When does transmission fluid need to be changed?
Most automatic transmissions need fluid every 60,000 to 100,000 miles, and a continuously variable transmission usually needs it sooner, often around 30,000 to 60,000. Severe service shortens both. Fluid described as lifetime means the design life of the transmission, not the life of the vehicle, and changing it on schedule is far cheaper than the alternative.
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How to know if your car needs an alignment
How do you know if your car needs an alignment?
A car needs an alignment if it pulls to one side on a level road, the steering wheel is off center when driving straight, tires wear unevenly across the tread, or the steering feels loose or darty. Alignment is separate from wheel balancing, which fixes vibration at speed rather than pulling or wear.
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