If a bolt/nut needs tightening after 500 miles then there is a major issue with design.
Such nuts should have a locking mechanism
Nyloc/lock washer/threadlock/pin/lockwire.
I find it alarming that the factory reccomends checks that often and not upgrade to make the design safer.
Ok...I have a trad and periodically check nuts/ bolts in some areas such as rear axle u- bolts etc.but not found any slackening to date.
The regular greasing that is advisable on the suspension etc is acceptable and allows a quick undercar check at the same time but driveshaft bolts/nuts at that frequency? A bit frightening.
