Vehicle: '11 Chevy Equinox, 2.4 l engine, disc brakes all around, 17 inch wheels, 7/8" hex lug nuts. The manual says the wheel lug nut torque is 140 lb. ft. At my first tire rotation (10K miles), I was able to loosen the wheel nuts with the tire changing wheel wrench that came with the vehicle. The wrench is pretty puny (maybe 14 inches long). I would venture to say that maybe the nuts were torqued to 100 lb. ft. max. After rotating the tires, I torqued the lug nuts to 100 lb. ft. with my 150 lb. ft. capacity 1/2 " square drive torque wrench. As a test, I had a very hard time trying to loosen them with the vehicle supplied wrench. That's how I arrived at the 100 lb. ft. max. guesstimate. I didn't want to torque to the 140 figure for fear of overtorquing or warping a rotor, etc. Several questions: 1) Is the 140 figure right? 2) If it is, how did it leave the factory with maybe 100? 3) I put on 10k miles without any problems with only 100 lb. ft. from the factory. Did it loosen to 100? 4) If I torque them to 140 lb.ft. and have a flat out in the boonies, how in the world would I ever loosen them with that puny wrench? Do I need to take along my 150 lb.ft torque wrench and a deep 7/8" socket? Any inputs/observation/ideas would be welcome.