Audi a4 1.8t 2004 oil consumption
 

Hi ive I've got a doubt on an audi a4 1.8t 2004 that im thinking of purchasing, the car is overall god for its age but the owner mentioned to me it has an extra oil consumption of about 1lt per month arround every 1500kms, is this normal could it have to do with the turbo or the age of the car?