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 INEOS Grenadier Quartermaster
What is the lug nut torque for a INEOS Grenadier Quartermaster?+
The 2026 INEOS Grenadier Quartermaster lug nut torque is 120 ft-lbs (163 N·m). Tighten in a star pattern with a torque wrench, then re-check after the first 50–100 miles.
Do all Grenadier Quartermaster trims use the same lug nut torque?+
Yes. Every Grenadier Quartermaster trim in our database uses the same lug nut torque for a given model year.
What size tires come on the INEOS Grenadier Quartermaster?+
Factory tire sizes include 255/70R18 (2026) and 265/70R17 (2026). Check the sidewall of your current tires to confirm yours, then compare prices for that size above.