Call Us: 1-855-928-2611Tires are the only part of a car that touches the road, and they are one of the few components where the failure mode is sudden rather than gradual. They are also, on a junk car, one of the more valuable things left.
Checking tread depth
New tires start around 10/32 of an inch. The legal minimum in most states is 2/32, but wet grip falls off badly well before that — most tire engineers suggest replacing at 4/32 if you drive in rain.
Two checks without tools:
- The penny test. Insert a penny with Lincoln’s head down. If you can see all of his head, you are at or below 2/32 and the tire is finished.
- Wear bars. Every tire has raised bars in the grooves. When they sit flush with the tread surface, the tire is at the legal limit.
Check in several places across the tread and around the circumference, not just one spot.
Wear patterns tell you what is wrong
Both edges worn, center fine — chronic underinflation.
Center worn, edges fine — overinflation.
One edge only — alignment, typically camber. Fix the alignment or the new tires go the same way.
Patchy or scalloped cupping — usually worn shocks or struts letting the wheel bounce.
Feathering, smooth one way and sharp the other — toe misalignment.
Uneven wear is worth diagnosing before buying replacements, otherwise you pay twice.
Age matters as much as tread
Rubber hardens and cracks with time regardless of mileage. A tire with plenty of tread that has sat for a decade is not a good tire.
Find the DOT code on the sidewall. The last four digits are the week and year of manufacture — 3219 means the 32nd week of 2019. Most manufacturers suggest replacement at six to ten years whatever the tread looks like. Look for fine cracks in the sidewall and between tread blocks, which is dry rot.
Replace in pairs at minimum
Mismatched tread depths across an axle affect handling and braking balance. Replace at least in pairs, fitted to the same axle.
On all-wheel-drive vehicles this matters much more. Many AWD systems tolerate very little difference in rolling circumference between wheels, and a single odd tire can damage a differential or transfer case — an expensive failure caused by trying to save on one tire.
What tires cost
- Budget tires: $60–$120 each
- Mid-range: $120–$200 each
- Premium or larger truck and SUV sizes: $200–$400+ each
- Mounting, balancing and disposal: $20–$40 per tire
- Alignment: $80–$200
A full set fitted and aligned on an ordinary car generally lands between $500 and $1,000.
Tires on a car you are scrapping
This is worth knowing, because people often assume the tires are worthless along with the car. They are not.
A set of tires with decent tread has genuine resale value, and unlike most of the car, tires are unaffected by flood damage, a blown engine or collision damage elsewhere. Alloy wheels add to that.
Which means two things. First, do not strip good tires off a car before selling it and replace them with bald ones — the buyer prices what is on the vehicle, and you will usually lose more on the quote than you gain. Second, mention the tire condition when you get a quote, because it is one of the details that can move the number.
When new tires cost more than the car
A $700 set of tires on a car worth $600 is a bad investment, particularly if the wear pattern shows the suspension or alignment needs work too.
Price the full job, then find out what the vehicle is genuinely worth as it stands. If the tires alone approach the car’s value, get a quote before you buy them — we buy cars in any condition with free towing and payment at pickup, and good tires still on the car count in your favor.
