any 302/351fit??
Postmaster
Joined: Mar 2008
Posts: 2,703
Likes: 7
From: Des Moines, Iowa
you notice that no one else has chimed in because Paul is 99.9% of the time right on the money... shoot 100% as far as i have found!
The 5.8L 351w are a better motor in the F-250's...for the extra 1mpg you spend you get more bang for your buck!
which motor do you have now?
The 5.8L 351w are a better motor in the F-250's...for the extra 1mpg you spend you get more bang for your buck!
which motor do you have now?
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Actually my 5.8 got better fuel milage than the current 5.0.. and made a lot more TQ.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Trending Topics
Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
In a 4x4 F150.
My 250 with the 5.8 and ZF 5sp hardly ever sees anything over 9 in the city and 14 on the highway at 75. Thats with 4.10 gears and 4x4. Expect to see single digits with the C6 behind the 5.8 in the city. Hardly anything better on the HWY either. I have both. 89 and a 96. Both F250s. Both gas hogs.
Definatly not complaining as i drive the 96 as a DD and it will pull anything i put behind her. She's a wonderful ole brute
My 250 with the 5.8 and ZF 5sp hardly ever sees anything over 9 in the city and 14 on the highway at 75. Thats with 4.10 gears and 4x4. Expect to see single digits with the C6 behind the 5.8 in the city. Hardly anything better on the HWY either. I have both. 89 and a 96. Both F250s. Both gas hogs.
Definatly not complaining as i drive the 96 as a DD and it will pull anything i put behind her. She's a wonderful ole brute
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Postmaster
Joined: Mar 2008
Posts: 2,703
Likes: 7
From: Des Moines, Iowa
In a 4x4 F150.
My 250 with the 5.8 and ZF 5sp hardly ever sees anything over 9 in the city and 14 on the highway at 75. Thats with 4.10 gears and 4x4. Expect to see single digits with the C6 behind the 5.8 in the city. Hardly anything better on the HWY either. I have both. 89 and a 96. Both F250s. Both gas hogs.
Definatly not complaining as i drive the 96 as a DD and it will pull anything i put behind her. She's a wonderful ole brute
My 250 with the 5.8 and ZF 5sp hardly ever sees anything over 9 in the city and 14 on the highway at 75. Thats with 4.10 gears and 4x4. Expect to see single digits with the C6 behind the 5.8 in the city. Hardly anything better on the HWY either. I have both. 89 and a 96. Both F250s. Both gas hogs.
Definatly not complaining as i drive the 96 as a DD and it will pull anything i put behind her. She's a wonderful ole brute
I think depends on what you have... I calculated 11-12 mpg on the F-250 351w I just brought home this last winter. And the engine was burning oil and leaking radiator fluid... Really worn out 351w... I have 3.55 gears on it so that helps. 4.10's eat the gas because they are pulling gears not highway gas savers.
I plan to put my Zf-542 behind the 351w once she is rebuilt, with e-fan conversion, and keeping the 3.55's for now. I'm hoping to see 13-14 avg and 16 hwy, but i guess well see where my hopes get me. It also depends on how you like to drive too. Keeping your foot in it, and running 75mph isn't going to do you any favors on gas milage...
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yep... but like everything else it's the total combo that makes the difference.. 3.55 gears, 31" tires, and an AOD trans with the super deep 0.67 overdrive ratio. The stick shifts only have an 0.80 overdrive ratio so you would have to drive much slower to get similar milage. I usually cruise at 70mph which produces about 1800rpm with that combo, with a ZF the same engine speed occurs at 60mph, and with 4.10 gears it would be way down at 52mph.
Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Which is wayyy to slow for me. lol i was just using my truck and your truck as an example on how different mileage the 5.8 can produce with different gear/trans combos. Not complaining on bit
Freshman User
Joined: Jun 2010
Posts: 41
Likes: 0
..
Well I am running 4.10 gears with a crappy m5r2 tranny until I get the new zf I am planning to get soon. At 65 miles an hour I am in the range of 3500 rpm driving down the highway. Not very good. I do a lot of highway driving so I am thinking of changing over to a 3.55 setup to save gas but I do like the 4.10's for when I plan on pulling, so its a win/lose for me. Also I am running 36 coursers at the moment so that kinda kills my gas as well..
I just bought the truck about a month and a half ago and I am just going through the truck and redoing just about everything. The motor came out of a 88 or 89 bronco and they left the original tranny and changed the gearing to 4.10. I really dont think they knew what they were doing. OR THEY DID. I have no idea.
I just bought the truck about a month and a half ago and I am just going through the truck and redoing just about everything. The motor came out of a 88 or 89 bronco and they left the original tranny and changed the gearing to 4.10. I really dont think they knew what they were doing. OR THEY DID. I have no idea.
Thread
Thread Starter
Forum
Replies
Last Post
hunterkane
Clutch, Transmission, Differential, Axle & Transfer Case
4
Mar 15, 2008 11:31 PM
pac_302_xlt
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
22
Apr 10, 2005 06:02 PM
airharley
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
4
Feb 19, 2002 01:34 PM