Chellie Doez Cars

Know your car. Drive with confidence.

Car Care Basics

Teach Me

Plain-language lessons, one skill at a time. Start anywhere — nothing here assumes you already know cars.

Hands-On GuidesOil, tires, battery, coolant, fluids — step by step, with pictures.

Dashboard Lights

Fluid Leak Guide

Glossary

Engine & Oil

Checking Your Engine OilThe single most important check you can do · 6 min

Cooling

OverheatingWhat heat means and what to do · 5 min Engine CoolantThe fluid that keeps your engine from cooking · 4 min

Fluids

Brake FluidThe fluid your safety depends on · 4 min Windshield Washer FluidSmall job, big visibility payoff · 3 min Power Steering FluidOnly on cars that still use hydraulic steering · 3 min Transmission FluidOften best left to a professional · 4 min

Tires & Wheels

Tires: Pressure and ConditionThe only thing touching the road · 7 min

Battery & Electrical

Battery and Jumper CablesA dead battery is the most common no-start · 6 min

This app provides general automotive education and is not a substitute for the vehicle manufacturer's instructions, inspection by a qualified technician, or emergency services. Procedures vary by vehicle — always follow your owner's manual.

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