Hello, I have an Audi 4kq it has about 150k miles bought a few months ago and was woundering what I should get for MPG I live in Litchfield county of CT. And I'm getting about 18/21-city, 20/24-highway(going at 65-70mph) is this normal?? The car smokes 0% but it seems this fuel use is high? Thank You for any help jwseitz@snet.net