- Feb 29, 2008
- South Bend, IN
- 04 Jetta tdi (gone) 2013 Passat SEL TDI
Had a nearly 400 mile road trip over the weekend. Here are my observations. The DSG tune made all the shifts very smooth and seemed to upshift and downshift at the appropriate times. My regens had been occurring about every 250 miles. The first regen I had after the engine tune happened after 465 miles. My fuel mileage driving this route is normally around 43 mpg. I averaged 46 mpg on this trip so almost a 7% increase. Def fluid use seems to be either the same or a slight decrease. My dpe readout on my Scangauge seems to show that it cools down much quicker when not under load. I'm seeing only positive improvements.