Lesson 01
Why Your Tires Are The Only Thing Touching The Road
Four contact patches the size of your palm carry the weight of your car at highway speed. Why this matters for braking, hydroplaning, and fuel economy.
6 min readBeginner
Lesson 02
The PSI Lie: Why Your Door Sticker Is Right And The Sidewall Is Wrong
The number on the side of your tire is a maximum, not a target. Here's how to find the right pressure for your vehicle.
4 min readBeginner
Lesson 03
How To Read A Tire's Birthday (DOT Code)
Every tire has a date of manufacture stamped on the sidewall. Tires older than 6 years are unsafe even if the tread looks fine.
5 min readIntermediate
Lesson 04
The Penny Test Is Wrong (Use A Quarter Instead)
The penny test only tells you when you've hit the legal minimum. The quarter test tells you when to start planning replacement.
3 min readBeginner
Lesson 05
Plug vs. Patch vs. Plug-Patch
Most roadside plugs are illegal as permanent fixes. We explain when a plug is safe, when a patch is required, and when a tire is dead.
7 min readIntermediate
Lesson 06
All-Season Is A Compromise
All-season tires are designed to be good at nothing in particular. For DMV winters and hot DC summers, here's when dedicated rubber pays off.
8 min readIntermediate
Lesson 07
That Dashboard Light: Understanding TPMS
Tire Pressure Monitoring Systems use small radio sensors inside each wheel. Here's what they do, why batteries die, and what reprogramming means.
5 min readIntermediate
Lesson 08
UTQG Score: Treadwear, Traction & Temperature
The government grades every tire on three measures. We translate the score so you can compare 300AA to 500BA without guessing.
6 min readAdvanced
Lesson 09
Why EVs Eat Tires Twice As Fast
Electric cars weigh more, accelerate harder, and put unique stress on rubber. Here's how to extend EV tire life by 30 percent.
6 min readIntermediate
Lesson 10
The True Cost of Cheap Tires
A $60 tire that lasts 25,000 miles costs more per mile than a $130 tire that lasts 65,000. Here's the math, plus the safety tradeoff.
5 min readBeginner
Lesson 11
How To Store Tires Without Killing Them
Heat, sunlight, ozone, and ground contact destroy tires that aren't even on a car. Here's how to keep your spares fresh.
4 min readBeginner
Lesson 12
Rotation Patterns: X, Forward, Rearward
Directional, asymmetric, staggered — not all tires rotate the same way. Get this wrong and you'll wear them out double fast.
7 min readAdvanced
Lesson 13
Altitude & Cold Weather: Why Your PSI Drops
Every 10°F temperature drop = 1 PSI lost. Driving from sea-level DC up to the mountains? Your tires read different. Here's the chart.
5 min readIntermediate
Lesson 14
Load Index Decoded: What 95H Actually Means
Each number on the sidewall maps to a maximum weight in pounds. We translate the full table so you never underbuy for towing or hauling.
8 min readAdvanced
Lesson 15
How To Spot Used Tires That Will Kill You
The four signs of a tire that's been previously plugged, internally damaged, or sat in the sun for years. Buying used? Read this first.
6 min readCritical
Lesson 16
Why Dealer Tire Prices Are 2-3X Mobile
Behind the dealership markup. We break down what you're actually paying for, and where to cut the middleman without sacrificing quality.
5 min readBeginner
Lesson 17
Manufacturer Warranties Decoded
Treadwear warranty vs. road hazard warranty vs. defect warranty. Most drivers don't know which one covers their blowout. Here's the full guide.
7 min readIntermediate
Lesson 18
Performance vs Touring: A Real-World Comparison
Sport tires grip harder, wear faster, ride rougher. Touring tires last forever, ride smooth, give up corner speed. When should you pick which?
6 min readAdvanced
