1. Tread Depth is Too Low
The tread on your tires provides traction and helps prevent skidding.
- Use the penny test: Insert a penny into the tread with Lincoln’s head down. If you can see the top of his head, it’s time for new tires.
- Alternatively, check if the tread depth is below 2/32 of an inch (1.6 mm).
2. Cracks or Bulges
Inspect your tires for visible cracks or bulges on the sidewalls.
- Cracks: Indicate aging or damage from exposure to sunlight or chemicals.
- Bulges: Suggest internal damage, often caused by hitting potholes or curbs.
3. Uneven Tread Wear
Uneven wear patterns can be a sign of:
- Improper alignment.
- Over- or under-inflation.
- Suspension issues.
If one side of the tire wears faster than the other, have it inspected.
4. Frequent Air Leaks
If you’re constantly refilling your tires with air, it could indicate slow leaks, punctures, or structural problems.
5. Age of the Tires
Even if the tread looks fine, tires should typically be replaced every 6–10 years, as rubber degrades over time.
- Check the DOT number on the sidewall for the manufacturing date. The last four digits show the week and year (e.g., “2518” means the 25th week of 2018).
6. Vibration While Driving
Excessive vibration could indicate tire imbalance, alignment issues, or internal tire damage.
7. Reduced Traction in Wet Conditions
If you notice longer stopping distances, less control in rain, or frequent skidding, your tire treads may be too worn to provide proper grip.
