Its been like this for a couple of months maybe 3 or 4... Whenever I floor it in 1st or 2nd gear... I hear this rattling noise, sounds like aluminum foil when u put it close to your lips and hum. anyway... was wondering if its normal, I would really like to get feedback from B7 owners...

Also... The motor oil is a little dirty, 11,000 miles on it, next serviceing scheduled for 15,000 even though the service computer warning went on around 8,000 miles.... Am I being screwed here by a sleazy dealership?. Should I change my oil and my filters... behind my dealers back? if so what kind of oil do I use, and the filters as well?