On the track always! During normal driving, always! Yeah I am bad but I love it and so does my car. Think about the autobahn and how hard these cars are run. The old school method praises it here and there also.
2006 E90 330i | Black Sapphire | ZPP | ZCW | NO Turbos!
2002 E46 330i 250,000 Miles and still going strong!