5.4 l engine

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worthabit

Well-known member
Joined
Mar 5, 2008
Messages
601
Location
prince edward island Canada
do any of you have any experience with Ford's 5.4 l gas engine. What is it's fuel economy, does it have enough power, etc. We currently have a 6.0 l chev and it has 67 more horses so was concerned about this.  What about gear ratios, 4.10 would be geared lower, but less economy right?
 

showsteerdlux

Well-known member
Joined
Nov 30, 2007
Messages
1,765
Location
Western NC
We had an 04 F150 with the 5.4 and a 3.73 rear end, got about 15mpg in town, 22 on highway and 17 with a load on the highway. The truck pulled like a dream with both gooseneck and tag along  trailers. Largest load I ever had on it pushed 10,000 pounds and the truck didn't have a bit of trouble running 65 on the highway and we live in the mountains. I'm guessing you would have it in the 250 model. I have a buddy who has that combined with the 4:10 gears. He gets 12 mpg whether he is empty or hauling and the truck has 170,000 miles and still going strong.
 
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