On starting up my new M3 1999 with only 4500 miles on, a small puff of blue, grey smoke came out the exhaust, then disappeared. Tick over was a little eratic until warm (which I know is normal).
FYI, the car had been standing for approx 36 hours.
Is this normal??
Surely I haven't got valve problems already? I'm still driving on the first set of oil. Performance is also fine.
Thanks in advance....