Miles per gallon

Is there a significant difference in mpg between a 4 liter V6 4WD (2004 Explorer) and a 4.6 liter V8,AWD (2008 ford explorer)?

fueleconomy.gov

Click This Link:
http://www.fueleconomy.gov/feg/sbs.htm

Some people want legal action when their car loses a percieved 2mpg after some kind of repair (wiper blades,bulb change etc.) You must state what is “significant” to you.