Today I took a 150 mile road trip in the Mark VIII. I was very pleased to see that I got 28.8 mpg average. The best previous to this was about a month ago when i got 26.5. The trip was on Primary Highway (non-interstate) and I was running 55-62 mph with a few blasts when passing slower vehicles.
Message Posted: Nov 19, 2005 7:56:45 PM
Is this normal for everyone with 4.6 liter "marks"? .... I was thinking about putting a set of wires and plugs in it, I wonder if it will help the mileage even more!?!?!?!?