One of the most disgusting smells this car will produce
11k and 2 years old came out pretty black, but no flakes and shavings
replaced the gaskets and new fill bolt with a magnetic once.
Surprised the oem bolt isn't magnetic
only after the initial install and after about 50 miles
I'll check them along with the lug nuts just to be sure
Loctite is also used
I've gone through 7 different Motorsports Hardware stud kits in 5 different Bimmers and have never had an issue if installed correctly