If anyone can answer a few questions we would appreciate it. At 52 miles he was 1/4 quart low. Is this normal? He used Castrol Syntec 5-40 VW 502 00/505 00 approved. His owners manual calls for 503, does this oil satisfy that as well? He will be doing 5k drains for warranty purposes and would prefer using his own mechanic, which oil and filter would you recommend he bring to him?(that won`t get him in warranty trouble) His mechanic stocks M1,not sure if VW approved though. Also,when should he do his first oil change? He cares a lot about oil changes and just doesn`t want to make a mistake. With all these new (to us anyway) ratings it gets pretty confusing so any help would be great.