When I bought steel rims for my Tacoma, they were loose after 25km, then again at 100km, and again at 200km. Finally at 300km, they were still at the correct spec. Every winter, they moved a bit at 100km, and sometimes at 200, while my aluminum rims never lost any torque. I torque wheels when I install them, then go for a short drive, retorque, and then torque at 100km. If they move at all at 100km, I check at 200km.
But if this just started after a shop installed wheels, they may have been stretched, and if so they will stretch until they start breaking.
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Only accurate guns are interesting.
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