jerrytug
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- Isle of Wight
How do you know that Copper grease results in exactly 20% extra fastener tension? Surely that is just a wild guess?who on earth changes a stud unless its actually knackered though?
There are two reasons why wheel studs are damaged in the first place - 1. too much friction or corrosion causing galling; and 2. rough-ass tightening with too many ugga duggas.
This is why I always use copperease and torque to the manufacturers minimum torque. Will never damage anything, as that extra 20% fastener tension is well within the safety margin by design.
We've had this argument before several times on here, and each time there are people adamantly opposed to lubing wheel bolts - I understand the theories and there are pros and cons both ways. Ultimately I go with lube.