in the first 6 months. Turns out 1 qt/1k mile (6 qt/6k so far) is "normal". Funny thing is though, no one on any of the boards seems to have experienced such high usage as this "normal" amount I am. A lady was in getting her Pcar serviced and asked me what I thought about the Cayenne Turbo and I'm sure my body language and facial expressions telegraphed brutally what I was trying to sugar coat. I sure hope design and build quality is better on the CGT.