Tourqing alum rims

Checking lug nut torque is a part of every single manufacturer's recommended maintaince schedule I've ever seen in every service department I've ever worked in. Turning wrenches since 1974, that's a lot. That includes GM, Ford, Chrysler, Benz, Volvo, Toyota and a lot of independents I've worked for through the years. Those recommendations come from engineers with technical minds far greater than mine and I've never questioned them and never had a wheel run off in over thirty years. There are even TSB's out on retorquing lug nuts at different intervals on some makes and models. As hot as wheels get, they need to be retorqued just as part of your regular maintainance routine. Failure to do so can be catostrophic. Just because you've not experienced it, doesn't mean it's not true. Go to any wheel web site and you'll see even they recommend retorquing on a regular basis. Even Larry Shepard talks about it in the Mopar Suspension manual. .....and I sure ain't arguin with him. ...and by the way, aluminum heads have special torque to yield head bolts designed to let them move around just enough so as not experience just what you describe.