- Feb 11, 2004
- Republic of Southern Illinois
- Former TDI owner
I remember tracking my 2003 Jetta in a spreadsheet, hitting 55 and 54 MPG in back to back tanks (with lows in the 30's, while I was racing)The Cummins lie-o-meters are notorious for being 4-5 mpg optimistic. It takes hand calculating many tankfuls to get any kind of accuracy. I could tag 55 mpg on the mfd in my Golf, but in real world use it averaged more like 42 mpg.
I noticed the rams do not have a "fuel amount used" to you can see how far off they are at fillup.