It would help if people would realise that they don't need to be so tight. I did someone's brakes the other day, and even with a bar 30" long (actually my jack handle) it still took all my strength to undo.
That isn't safe. The wheel alloy isn't strong enough for that. Garages in these tyre fitting places of the Kwik Fit nature employing the use of air impact drivers at maximum pressure and holding the button in for as long as it takes for the nut to really be unable to move any further - they are not doing any favours.
110 Newton meters on our V40. That's all. It's about the same effort as closing the boot lid. It's really not very much. Any more is wearing your alloys, straining your alloy bolts, in particular it's wearing the alloy threads on the bolts against the threads of the steel hubs. That wear is dangerous.
Overtightning wheel nuts is NOT safe.
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