Facts, not guesswork
Know what your car really costs and what it is telling you.
Plain-English answers on ownership costs, fuel economy, what specs mean, dashboard warning lights, insurance and registration basics.
Browse by topic
Explore Car Facts & Guides
Pick a topic to find costs, explanations and basics.
Ownership Costs
Monthly and yearly cost of owning a car, and how to compare two cars.
Explore topic →02Fuel Economy
What MPG means, why mileage drops and how to work out fuel cost.
Explore topic →03Car Specs Explained
Horsepower, torque, curb weight, tire and wheel specs in plain words.
Explore topic →04Warning Lights
What each dashboard light means, likely causes and whether to keep driving.
Explore topic →05Insurance Costs
What drives car insurance prices and what coverage you actually need.
Explore topic →06Registration Basics
Registration vs title vs plates, documents and typical fees.
Explore topic →Featured reading
Start Here: Car Facts Essentials
The cost, spec and warning-light questions drivers search most.
What Is the Difference Between Fuel Grades?
Fuel grades are octane levels: regular is usually 87, mid-grade 89, and premium 91–93. Use the grade your owner’s manual calls for…
Wheel Size vs Tire Size: What Is the Difference?
Wheel size is the rim diameter and width; tire size is the section width, aspect ratio, and rim diameter. Get the rim…
Why Does the Oil Light Come on and Off While Driving?
A red oil light that comes on and off while driving means you should stop and check oil level and pressure before…
Why Is the Battery Light on While Driving?
A battery light while driving usually means the charging system is failing, not the battery; a steady light can mean drive to…
From the blog
Latest Car Facts Articles
New guides on costs, specs, warning lights, insurance and registration.
Average Car Repair Cost: What Do Common Fixes Cost?
Common repairs range from about $100 for diagnostics to $1,000+ for brakes, while major engine or…
Why Did My Check Engine Light Come on After an Oil Change?
A check engine light after an oil change is usually a service-related issue or coincidence. Check…
Title Transfer and Registration: Can You Do Both Together?
Yes, if your state allows one DMV transaction and you bring the signed title, ID, insurance…
Maintenance Costs vs Repair Costs: What’s the Difference?
Maintenance is scheduled service; repairs fix a fault after failure. Use this guide to separate routine…
Does Full Coverage Cover Everything After a Car Accident?
No. Full coverage usually means liability, collision, and comprehensive, but deductibles, exclusions, injuries, and loan gaps…
Why Is Liability Insurance Required for Drivers?
Liability insurance is required so the at-fault driver can pay injury and property damage claims, with…
Recent Guides
- What Is the Difference Between Fuel Grades?
- Wheel Size vs Tire Size: What Is the Difference?
- Why Does the Oil Light Come on and Off While Driving?
Browse a topic above or search for your question.
Looking for a specific answer?
Search by car, cost, spec or warning light.