I am changing my oil and oil filter but im not sure what oil filter to buy, i went to napa and I purchased one. But the clerk asked for my specs, A4 2.8 Quattro, use those specs all the time but he asked if i was Single or Dual OHC, wasnt sure i thought DOHC. Any help please? Been looking through the owners manual and i got a head ache from flipping pages

EDIT: I also would appriciate some advice on waht oil to buy aswell, My Audi has 112k on it should i be getting highmilage oil?

 

yours should be the DOHC if its a 98, the 30V