my car has 120K miles. I know the oil needs to be changed but the car runs perfect. Is there anything I should know about when it comes to the A4 2.8 Quattro's weaknesses? How is the transmission and the head gasket?

Thanks!

 

Also, what kind of oil should I get?

 

2.8 is the most reliable, for oil, I used valvoline or mobil 1.