Fuel Mileage
Fuel Mileage
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Junior User
Joined: Jan 2006
Posts: 67
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Gas Mileage
I get than that I get 16 to 17.5 around home on short trips & up to 21 on trips running 65 mph, All I have done is add a K&N Air Filter. I was hopeing to get more locally with a cat back system.
Senior User
Joined: Aug 2004
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i get 16 -17 on the road as long i stay at 65 . i have a 01 super crew with a 5.4 4x4 and this is after the flowmaster, power programer cold air intake and t.b spacer.i got 14mpg this week in town but i love 2 eat che------
FTE Legend
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
Im not even close to 16 or 17 in the city with my 4.6. Damn things a pig in the cty, I am afraid to actually figure it out!
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Senior User
Joined: Dec 2005
Posts: 274
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I don't know. The worst I've seen out of my 4.6L engine is 18. I logged 22.9 mpg drving it home from Denver when I initially bought it. Slowing down makes a big difference in how thirsty the engines are.
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Posting Guru
Joined: Nov 2004
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From: N. Mississippi
I get an average of 15 to 16 on my 97 F-150 with a 4.6. I can get as much as 22 on the highway and as high as 17 in city driving if I keep my foot out of the throttle.
Drop the overdrive out and the mileage drops in town but the performance of the truck is better.
Drop the overdrive out and the mileage drops in town but the performance of the truck is better.
Cargo Master
Joined: Dec 2004
Posts: 2,232
Likes: 3
From: NE Texas
To answer your question, yes it will fractionally improve your fuel mileage, but you would probably not recoop the cost of the system from savings in fuel cost during the life of the truck.
Driving style will indeed offer the most fuel savings. Also keeping the tires properly inflated, and keeping the truck properly maintained are your most cost effective fuel economy measures.
Good luck,
Driving style will indeed offer the most fuel savings. Also keeping the tires properly inflated, and keeping the truck properly maintained are your most cost effective fuel economy measures.
Good luck,
Senior User
Joined: May 2003
Posts: 369
Likes: 0
From: Gilbert, Arizona
YES- a cat-back will improve mileage. I noticed a huge difference in mainly power, there quite a few horses to free up with bigger pipes. More power DOES have the ability to turn into MPG's if you keep your foot out of it. Fords intake design flat out sucks too.. Its mainly the manifold, but getting a intake helps.
I dont know how you guys are pulling off those numbers. I get 16MPG's on the highway and 11 around town...
I dont know how you guys are pulling off those numbers. I get 16MPG's on the highway and 11 around town...
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Junior User
Joined: Jan 2006
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I have a 4.6 engine 4x4 with a bedcover. I build my speed up with out flooring it off the line,I try to stay in overdrive all that I can to keep the RPM'S down, I check tire air pressure once a week when I check my oil & other fluids, I don't idle the truck more than I have to. From what some of the other trucks are running on gas mileage I guess that I'm doing great. The system I was looking at was a Stedda Stainless Steel one, are they very loud? I want to keep the truck quite.
Last edited by Johnny_r; Feb 14, 2006 at 06:20 AM.