As per a recent post of mine on the subject, I won't go into detail about the reason for the trip (tho it has to do with my SCoA name)

... but this afternoon I'm heading to Portland, ME. The GPS tells me it's about a six-hour trip, tho the way that I drive, I'd anticipate that it'll be a bit longer (I tend to drive 5-10 mph below the limit, if possible -- I'm a gas miser).
I've taken the advice we all gave Amythyste before her long trip: make sure the fluids are ok, check the tire pressures, drive safely. Well, actually I didn't check the fluids because the car is only a month old (tho it does have nearly 5,000 miles on it already). I'm driving back in a week, and the miles I put on it for the round-trip are actually less than my weekly commuting.
I'm going to fill up right before I leave, and I have a ScanGauge, so I'm looking forward to reporting on some highway-driving-only MPGs. I'll report back.