I am competing in the Fuel Economy Run at the 2008 TDIfest. In this thread, I will document my three day event. The TDIfest FE run is being conducted in an informal basis, and participating members are using their tanks coming to TDIfest as the run. Since TDIfest is in Cincinnati this year, and I am local, I am using the three days leading up to TDIfest as my drive in run. Fortunately, I have three trips that I need to make on the 3 days preceding TDIfest to get about 800-1000 miles on a tank. The steed. 2006 VW Jetta TDI Day 1 On the first day, I filled the tank and started the run. This day, I had a proof approval for a project in Troy, OH. It is about 75 miles from my home. I have to navigate through 2 major cities, Cincinnati and Dayton, Ohio with all the construction and traffic. Also the weather today was raining most of the time, as the remnants of Hurricane Fay came through the area. The first thing I did was fill the tank. I stuffed it as best that I could. Here is a pic with the fuel filled all the way to the top and the ODO and trip at fill. One the way up, I ran into some pretty heavy rain. Here is a pic of the rain. Route: I started in Fort Thomas, KY and traveled via interstates 471,and 75 to Troy had a 1 hour approval meeting and drove back to Fort Thomas. Here is a map of the route and the terrain. Techniques I used. 1) High speed P&G Nice ON For this I used the scan guage set on MPG, CFE, MAP and LOD (see pic below) I pulsed from 50 MPH to 55 MPH at LOD 42 which gives a MPG of about 50. I then selected neutral and Glided to 50 MPH and pulsed again. During the Glide the MPG would be about 315 MPG. This yields about 70 MPG on level terrain. 2) FAS On the larger hills I would FAS. There is an issue with turbo cooldown In the TDI. I only FASed on long hills and after I let the turbo cooldown for 10.0 seconds. Here is pic showing the scanguage setup and the Glide slowing through 51 MPH. At the end of Day 1 I traveled 152 miles on the ODO and 143 miles on the scan guage. The difference is the FAS distance. I used 2.05 gallons according to the scanguage. The gas guage is still pegged at full. Calculated MPG is 74.1 for the first day. Scanguage says 70.0 but does not take into account the FASes Tomorrow I am off to Grovetown, IN to pick up a concrete fountain and maybe lunch with Larry. I hope to keep 70 MPG for the entire tank.