TreadCompass

Pontiac G8 Lug Nut Torque

The 2008–2009 Pontiac G8 lug nut torque is 125 ft-lbs (169 N·m).

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Pontiac G8 · 2008–2009

Lug nut torque
125ft-lbs169 N·m
Same spec for every year 2008–2009.
  • ✓ Tighten in a star pattern, in two passes, with a torque wrench (not an impact gun)
  • ✓ Re-check the torque after the first 50–100 miles
  • ✓ Confirm against your owner’s manual; aftermarket wheels can differ

Source: TreadCompass vehicle fitment database. Page updated November 2026. Specs can vary with aftermarket wheels and lug hardware, so always confirm with your owner’s manual.

Factory tire sizes for the Pontiac G8

Compare prices across retailers for your size.

245/45R182008–2009 · Compare prices →245/40R192008–2009 · Compare prices →

Other Pontiac models

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Pontiac G8 lug nut torque FAQ

What is the lug nut torque for a Pontiac G8?

The 2008–2009 Pontiac G8 lug nut torque is 125 ft-lbs (169 N·m). Tighten in a star pattern with a torque wrench, then re-check after the first 50–100 miles.

Do all G8 trims use the same lug nut torque?

Yes. Every G8 trim in our database uses the same lug nut torque for a given model year.

Has the Pontiac G8 lug nut torque changed over the years?

No. It has been 125 ft-lbs (169 N·m) for every model year we have, 2008–2009.

What size tires come on the Pontiac G8?

Factory tire sizes include 245/45R18 (2008–2009) and 245/40R19 (2008–2009). Check the sidewall of your current tires to confirm yours, then compare prices for that size above.

New to torquing wheels? See how to torque lug nuts and common questions.