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NGK or Bosch Spark plug in E53? and correct torque 30nm or less?
So for the DIY Inspection for Dummies, I still have a few questions in the sparkplug area..
1) NGK or Bosch- Some say X5s originally came with German Bosch but now are NGK so which one?
2) Correct Torque in locking in the plug 30 nm or less? or is the Torque wrench overkill, shall we just tighten till the plug stops?
3) Anti-sieze lube on plug...?? some say do it some say don't
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