Item Subject: cc:Mail Text My 5K 10V engine never used a drop of oil, even at 120K+ miles. My S4 20V engine used 1 quart/3000 miles on 10W-30 dino oil, switching to Mobil 1 dropped consumption to less than 1 pint/3000 miles. When I asked the dealer (since S4 was still under warranty) he said Audi does not consider it a problem unless greater than 1 quart/1000 miles. Jim Warren