4.6 vs 5.4

[spud]

So as near as I can read about these Ford motors it seemed the 4.6 was pointless for the Expedition. It seemed to drink as much fuel, little to no towing ability so why???

Maybe what I am reading is wrong on MPG?

Again I have had Chevs prior to this minus a brief time with an old f150 with a 300 I-6 that I loved, sold to a friend and over 300K later its still strong (1996) and they rave about it too.

I know the 5.7 in a Yukon did better than the 5.4 in MPG and about the same in HP and Torque.

I dont tow much so i thought the 4.6 would save me fuel but after I bought the 4.6 XLT and then did a little research I think I would have been money ahead with seeking out a 5.4 model perhaps?

 

[toms89]

It does rate higher in mpg.

Fuel Economy of 2000 Ford Expedition 4WD

With the extra torque down low the 5.4 needs less throttle input to get the mass moving so depending on how you drive the 4.6 potential savings in fuel economy may not be realized. I would think the HWY mileage would be better when there is little stop and go driving due to smaller displacement.

 

[daoud elmassri]

Some one who had both fist was the 4.6 in my 2000 expedition sucked around town like maybe 11-12miles a gallon hiway maybe if I was lucky 15-17. Did the K@N filter and excel coil pack got 18-19 still sucked on performance snail l. The 5.4 is so much better mileage .Motor is a 2001 with 40/wr/100 4X4 replaced rear excal 3:55 posy . Before I did supercharger was city 12-15 highway 19-22 depending on my foot did the K&N cold air wxcel coil pack .