bukhrn wrote:
matt7591 wrote:
On 5,000 miles if you can go from 8 to 10 mpg you can save a whopping $400 at 3.50 a gal (more than current prices).
Not worth the hassle to worry about considering all the other costs.
Maybe not to you, but I'm quite sure most of us would rather have that $400. in our pockets than in those of the oil outlaws.
Granted, but 5k miles at 65mph is 77 hours and 5k miles at 55mph is 91 hours, a difference of 14 hours. That's 2 days of driving 7 hours per day, or $200 a day. 
Given the choice of spending an extra 2 days on the road, or 2 days on the beach, there's not much much to discuss. 
Now that it's under $2 / gallon, it's even more moot.