AutoTools

Car repair, maintenance and diagnostics articles from the AutoTools blog — OBD codes, guides, tire comparisons and buying advice.

31 items available

How a turbo makes power from exhaust gas, what boost, wastegate and intercooler mean, and how to keep one alive.

You know the feeling. That odd squeak at startup, a warning light that flickers on then vanishes, or a slight vibration...

The only contact your car has with the road — learn to read a tire, choose the right type and keep it safe.

What OBD-II is, how to read codes, where the port is and how live data turns a guess into a diagnosis.

A practical 30-point walk-around that catches most problems before you hand over your money.

How a car battery works, how to test it, how long it lasts and the exact steps to replace one safely.

Real fuel savings from driving style, maintenance and the little habits that add up.

Your car doesn't usually die in one dramatic moment. It dies in small, boring increments — a skipped oil change, a noise...

What the numbers on the bottle mean, why spec matters more than brand, and the common oil myths mechanics see every day.

How the braking system works, what each part does, the warning signs and the right replacement schedule.