1997 Ford F250 with 460...MPG help - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 04-30-2003, 11:42 AM   #1 (permalink)
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1997 Ford F250 with 460...MPG help

Okay...it is bone stock and gets 8 mpg towing. What can I do to increase the milage? I have to feed it way too much.

Yes...Yes...get a desiel, but this is what I have and want to maximize it if it is worth the $$$
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Old 04-30-2003, 12:50 PM   #2 (permalink)
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http://www.performanceunlimited.com/projectmpg/

BTW -- Since this is a CA truck, is it mass air?
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Old 04-30-2003, 02:45 PM   #3 (permalink)
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I have the exact same truck as you and while I love it to death I get about 8-9 in town and 13 highway. I've done the exhaust and K&N thing and neither provided any increase that I could measure. The only thing that helped a little and I do mean a little was when the cat plugged up I just gutted it. I've just accepted the fact that it gonna get shitty mileage no matter what. Welcome to the world of the 460..........SUCKS HUH?
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Old 05-01-2003, 09:37 AM   #4 (permalink)
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I have never come close to 13 on the highway. Have a K&N...stock exhaust. What year?
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Old 05-01-2003, 09:39 AM   #5 (permalink)
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Quote:
http://www.performanceunlimited.com/projectmpg/
Yeah, I have seen that. But, they spent a ton of money to get that milage. If that is what you have to do...Diesel is in my future.
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Old 05-01-2003, 09:46 AM   #6 (permalink)
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Mine is a 97 4x4 EX cab Short bed sitting on 33x13.50 swamper LTB's. 8-9 town and 13 Highway. Like clockwork.
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Old 05-01-2003, 10:17 AM   #7 (permalink)
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Slow down. I used to get 8 MPG with my 350-powered tow rig - that was towing at 75+. At 55-60, it increased to 11-12 MPG.




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Old 05-01-2003, 11:44 AM   #8 (permalink)
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I think you would be better off investing in a quality tune-up and some synthetic oils. My 96 7.5 would get as bad as 5MPG towing, never better than 12 empty.
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Old 05-01-2003, 01:02 PM   #9 (permalink)
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I consistently get 14.8 in my '96 std cab 4x4 when I cruise between 70-75mph. It's a 5 speed with 3.55's, synthetic all the way around, and stock tires. It's tuned up, 11 degrees btdc, and kitty is hollow.
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Old 05-01-2003, 01:24 PM   #10 (permalink)
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I was in the 8-10 range with 88 4x4 F-350 reg cab with 5 spd. Towing, town, not towing nothing made much difference. The 460 is pretty much a lost cause IMO.
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Old 05-02-2003, 10:31 AM   #11 (permalink)
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Few more details....

The truck is an automatice 4x4, extended cab, extra-long wheel base with 33' tires. So, yes...it is a heavy beast. I have done nothing with the computer for the tires (Not even sure you can do anything) and it is entirely stock...xcept the K&N.

Why is synthetic an issue...would that really help?

Other input? Will exhaust help/be worth the money?

1 MPG more is 10% plus increase.
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Old 05-02-2003, 10:41 AM   #12 (permalink)
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Synthetic in the engine pays for itself...the 6 quarts of synthetic oil is $18 more expensive than dino oil, but I get the money back in the fuel savings over 3k miles...plus I get the benefit of reduced wear, heat, etc.

The auto isn't going to come close to the 5 speed in mileage, the price you pay for the luxury of not shifting.

My '89 5 speed had 35" BFG's with 3.55's and I got 11 loaded or empty. My '96 has mass air (CA truck) and stock P235's, so I guess that is why it's up to 14.8 when I drive nice.

Tune it up, run synthetic, keep the tires to pressure (probably 50 lbs or so) and drive nice.
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Old 05-02-2003, 10:47 AM   #13 (permalink)
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I've "been told" that the FI 460's are just plain pigs for gas...

my 27' Class C Ford motorhome weighs about 11k#, about 17k# once I hook up the trailer/cruiser. 1985, carb 460 with a C6....and 8 mpg pretty consistently. Only mod is a K&N and a 3" Dynomax exhaust out the side.

Hate to say it, but any mileage gains won't be cheap, and even if ya pickup 1mpg it'll take ya years to recoup any investment.
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Old 05-02-2003, 12:39 PM   #14 (permalink)
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4wheel and off road did an article a year or so ago about getting more mpg out of a 7.5 . The did analysis on cost/mpg gain = miles to payback. I think tune up (including TPS), synthetic, insulating air box were the biggest gain for the $$. K&N + chip didn't do much for $$. I think they took it from 9MPG to almost 12MPG. I ran from Oregon to Yellowstone last year with my 7.5 Ford and about 3500LBS worth of camper and gear. Averaged 8MPG .
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Old 05-02-2003, 09:10 PM   #15 (permalink)
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I think its a lost cause aswell, trying to spend money to increase the fuel mileage. 460's are just pigs when it comes to any decent mileage. The best thing I ever did when towing with my 460, although it had a carb, was to slow down like Tex said. You'd really be surprised the difference it makes.
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Old 05-02-2003, 10:39 PM   #16 (permalink)
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The shop truck at work is an 85 crew cab long bed, 4x4 auto 460, bone stock with a fresh long block. Last trip that I checked milage on was a constant 60 mph, 15,000 pound trailer on the goose, couple of hills thrown in that slowed me to 45 mph, and I averaged 9.275 mpg.
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Old 05-03-2003, 10:47 AM   #17 (permalink)
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I've thought many times about just dithcing it and getting something else but with the exception of going to diesel which for me isn't very cost effective the 460 just flat out kicks ass. If you can over look the mileage , (yeah I know it's hard) the trucks really are awesome. The motors last forever and a day and the axels are stout as hell. I think ford should have stuck with the 460 instead of the pig V-10.
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Old 05-03-2003, 11:22 AM   #18 (permalink)
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I'm glad to see others posting about the 460. It has pleanty of power and is reliable as hell. Even with this gas hog the price difference vs upgrading to a Diesel for the few long trips I make just isn't worth it right now. I tow with a 95 F350 4x4 Crew cab, 460-Auto and 4:10's.Hell, empty it weighs 7400# Then throw on my M715 at 6410#(empty-no full size spare, tools,gear) on a 1350 Lb trailer. I'm damn happy with it for a gasser, just wish there was something else one could do for better mileage. I run Mobil 1 in it, did not see mileage increase, but definitely lowered engine temp by about 20 degrees.

BTW- its rated at 19,200 CGVW

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Old 12-07-2010, 06:08 AM   #19 (permalink)
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1997 f250 460 engine

I am currently looking at a 1997 F250 crew cab with a short bed (wish it had a long bed). it has 147k on it. I don't know a lot about these engines but I have had several old broncos in the past and currently have an 86 f250 single cab that i am going to sell. My question is this, what tranny did ford use in these trucks? i had a lot of problems with the E4 OD tranny in my full size Bronco years ago, is this something I will have problems with in this truck to. It is a clean truck no rust and in great shape, they are asking $9900.00 for it, it that a good price? any help would be appreciated!

Thanks,
Jason
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Old 12-07-2010, 07:24 AM   #20 (permalink)
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Quote:
Originally Posted by smitty099 View Post
I am currently looking at a 1997 F250 crew cab with a short bed (wish it had a long bed). it has 147k on it. I don't know a lot about these engines but I have had several old broncos in the past and currently have an 86 f250 single cab that i am going to sell. My question is this, what tranny did ford use in these trucks? i had a lot of problems with the E4 OD tranny in my full size Bronco years ago, is this something I will have problems with in this truck to. It is a clean truck no rust and in great shape, they are asking $9900.00 for it, it that a good price? any help would be appreciated!

Thanks,
Jason
holy dead thread

steep on price seen multiple 460 powered 4x4s on craigs list for 4k-6k with at or less than 100k miles

best power adder on a 460 a quality set of headers. doug thorley or JBA give them a real seat of the pants. K&N is also a cheap upgrade. remove the air horns in the intake tubes.

dont mess with a chip unless you plan to do a cam swap, swap the timing chain also to go straight up.
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Old 12-07-2010, 08:53 AM   #21 (permalink)
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$9900 is a good price, if you were looking at that truck in 2003 when this was an active thread. You should be able to get a diesel for that price, and that truck should be in the $4-5k range.
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Old 12-07-2010, 09:03 AM   #22 (permalink)
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460,e4od,4.10's. loved this truck except the 6mpg (this is towing in colorado)towing.



couldnt take it any more and got a 95 dodge 12v dually with a 5 speed. hate the truck but love the power and 14mpg towing.

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Old 12-07-2010, 03:32 PM   #23 (permalink)
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9900 sounds steep to me. I've seen powerstrokes of that year going for less than that.
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