Noob, 5.4 or 4.6? MPG's?
05-05-2008, 11:24 PM
#21
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Join Date: Apr 2008
Location: West Springfield, Ma
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I have a 99 with a 5.4, it's about an $80 fill up and I seem to be getting 12-14 MPG. I've only had it a short time so I don't know exact number and per tank mileage.
05-06-2008, 08:05 PM
#23
Senior Member
What gear ratio does the FX4 have? I usually get 15-16ish in town and 18ish highway driving at 80mph. I think I could break 20mpg with the ol' 5.4 if I didn't exceed 70mph 
