when an engine is breaking itself in, the first time you change the oil is important. the oil will have a lot of stuff you dont want circulating through your engine. at 2000 miles i put in a magnetic drain plug and switched to M1 extended performance. at 7500 miles there were some metallic bits i cleaned off my oil plug. since then, almost nothing is stuck on the plug at oil changes. in a turbocharged engine, i would recommend changing the first oil at 1000 miles.