Looking to keep my '11 M3 in top condition I'm throwing the following question out there. Should I do more frequent oil changes than the onboard computer tells me to? I'm worried that most car makers nowadays push their service intervals as good advertisement. My driving is quite varied from 5-10 minute commuting to/from work, long weekend trips with occasionally some deep pedal movements, partly stuck in traffic as the rest and so far no track days, canyons are the preferred adrenaline booster. It's a general question and doesn't need a detailed technical answer.