New vs. Used Tires: General Considerations

Used tires can be a practical option for some drivers, provided they are inspected carefully. Typical inspection points referenced by the Tire Industry Association and major manufacturers include:

Common Inspection Points

• Remaining tread depth. The legal minimum in Alberta is 3/32 of an inch. Many manufacturers recommend replacement at 4/32 for wet conditions or 6/32 for winter conditions.
• DOT date code. The last four digits of the DOT code indicate the week and year of manufacture. Tire manufacturers typically provide age related guidance in their warranty documentation.
• Wear pattern. Uneven wear can indicate prior alignment or suspension problems.
• Prior repairs. Per industry guidance, repairs should only be made in the tread area. Sidewall repairs are not considered safe.
• Sidewall condition. Any bulge, crack, or gouge indicates possible internal damage.

When New Tires Are Typically Preferred

For heavy use, long highway commutes, winter driving, or vehicles where stopping distance is a priority, new tires usually offer the widest safety margin because of full tread depth and fresh compound.

Any used tire should be inspected by a qualified technician before installation. This article is intended only as general information.