Tires
How Often Should You Rotate Your Tires? A Simple Guide
Most cars need a tire rotation every 5,000 to 7,000 miles. Learn the interval, patterns, and cost.
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Fix your car yourself. We show you how.
Step-by-step car maintenance guides in plain English. No jargon, no guesswork, and no mechanic needed for the easy jobs.
Popular: check engine lightrotate tirescheck oilreplace a tirejump start a car
All car maintenance guides
Pick a topic below. Every guide starts with a quick answer, then walks you through the steps in order.
Tires
Tire care, rotation, and replacement.
Tires
How Often Should You Change Your Tires?
Learn the tread, age, and mileage rules that tell you when your tires are worn out.
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Tires
How to Replace a Tire
Replace a flat tire step by step, from loosening lug nuts to tightening them in a star pattern.
Read the guideEngine and Fluids
Oil and transmission fluid, checked and changed the right way.
Engine and Fluids
How to Check Oil
Check your engine oil in under five minutes with a dipstick, a rag, and no tools.
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Engine and Fluids
How to Check Transmission Fluid in 8 Easy Steps
Find the dipstick, read the level and color, and spot low or dirty fluid early.
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Engine and Fluids
How to Change Transmission Fluid: A Step-by-Step Guide for Beginners
Change transmission fluid at home, step by step, with tools, costs, and mistakes to avoid.
Read the guideWarning Lights
Dashboard symbols and the check engine light, explained.
Warning Lights
Car Dashboard Symbols and Meanings
Every dashboard warning light explained in plain English, with what to do right away.
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Warning Lights
What Does Check Engine Light Mean?
What the check engine light signals, the most common causes, costs, and what to do next.
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Warning Lights
Why Is My Check Engine Light On? Causes, Costs, and What to Do Next
A loose gas cap, a bad sensor, or a misfire are the top causes. Learn what to check first.
Read the guideBattery
Dead battery help and safe jump starts.
Battery
How to Use Jumper Cables Safely: A Step-by-Step Guide
Jump start a dead battery safely in eight steps, with the clamp order that prevents damage.
Read the guideWhy drivers trust AutoFixr
We research first, write plainly, and never fake expertise.
Research first
Every guide starts with owner manuals, manufacturer service information, and trusted sources such as Consumer Reports and NHTSA.
Fact-checked steps
The AutoFixr Editorial Team checks intervals, torque specs, and fluid amounts before a guide is published, and fixes errors fast.
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When a job is dangerous or needs a professional, we say so. We never invent mechanic credentials or pretend to be your mechanic.
Not sure where to start?
Checking your oil takes five minutes and tells you a lot about your car. Start there.
Check your oil first