Do I need to retorque my wheels after a tire change?
Yes, it is a good habit. Most vehicle and wheel makers recommend re-checking lug nut torque after the first 50 to 100 km, because wheels can settle against the hub once they have been driven on. It takes a couple of minutes with a torque wrench.
What torque means
Torque is how tightly each lug nut is turned, measured in foot-pounds or newton-metres. Every vehicle has a specified value. Our technicians tighten every nut to that value with a calibrated torque wrench rather than by feel, because too loose and the wheel can work its way off, too tight and the studs stretch or the brake rotors warp.
Why re-check after 50 to 100 km
When a wheel goes back on, there can be a thin layer of rust, road grime or paint between the wheel and the hub. Once the car is driven, those surfaces bed in and compress slightly. The nuts have not loosened on their own, but the clamping force is a little lower than it was.
Re-checking the torque after the first 50 to 100 km brings it back to spec. It is quick: each nut is checked with the torque wrench in a star pattern, and any that turn are brought back up.
Is it more important for some cars?
- Alloy wheels tend to settle more than steel ones.
- New wheels or new studs settle the most on their first drive.
- Rusty hubs, common on cars that see a lot of Ontario road salt, leave more to compress.
Warning signs
Pull over somewhere safe and get the wheel checked if you notice:
- A clunk or knocking from one corner, especially when turning or braking
- A vibration that comes and goes with speed
- The steering wheel shaking when it did not before
Doing it yourself
If you have a torque wrench, look up your vehicle's lug nut torque in the owner's manual and check each nut in a star pattern. Don't use an impact gun for this: it cannot tell you the torque and can easily overtighten.
Common follow-up questions
Why would a properly tightened wheel loosen?
Rust, dirt or paint between the wheel and the hub can compress once the car is driven, and alloy wheels in particular can settle slightly. The nuts were tight, but the surfaces behind them have moved a fraction.
Can I just tighten them as hard as I can?
No. Over-tightening can stretch the wheel studs or warp brake rotors. Each vehicle has a specific torque value, which is why a torque wrench is used rather than guesswork.
What are the signs of a loose wheel?
A clunk or knocking from one corner, a vibration that changes with speed, or the steering wheel shaking. If you notice any of these, pull over somewhere safe and have the wheel checked before driving further.