Is 16.5 mpg average?
Tuned
Joined: Mar 2013
Posts: 343
Likes: 5
From: Plumsteadville PA
Are you guys cleaning the line that goes from the sensor to EBPV in a regular basis? (assuming you still have your EBPV) and does that really help improve mpg or just an old wives tale? I was thinking about taking a look at mine after the drop in mileage
Tuned
Joined: Mar 2013
Posts: 343
Likes: 5
From: Plumsteadville PA
Anywhere from 15 to 19.5 here... that 15 included a whole bunch of warm-up time when the lows were single-digits, and I don't plug in at work. 16.5 is good for winter driving at 70-80 MPH, but it's possible to do a little better. I got 18 on a recent long haul at 70-75 MPH
Logistics Pro
Joined: Dec 2010
Posts: 4,738
Likes: 15
From: Temperance, MI
You can find the answer to your other post by a simple search.
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,269
Likes: 774
From: Houston, Texas
My bone stock '97 2WD (with reman stock injectors) bested at 23mpg highway completely empty, and routinely hit 19-20 on mixed driving, including inner city Philly commute to work. On the summer camping trips from Philly to Lake George in upstate NY, filled with gear and towing a boat, she'd get about 16-17. My '99 4x4 has never seen anything better than 18, and that was on the highway drive back from Denver. My local was 14-15. I expected a drop with the switch to 4x4 (all else is essentially the same), but with all the "improvements" from 97 to 99 I'm surprised the drop is as bad as it is.
Chances are, your 97 has 3.55 gears and your 99 has 3.73 gears.
Ford realized what they did in the mid 90s worked and decided to try it again in the late 2000s with great success....and better fuel economy.
That's why you saw 2009-2014 trucks shipping with options for 3.31 and 3.55 gears. You still make awesome power, but get great fuel economy at the same time.
Lead Driver
Joined: Jun 2013
Posts: 5,648
Likes: 894
From: north of Minneapolis, MN
Driving a GCVW of 20-21k lbs at 65 mph with 3.73 SUCKS. I'd much prefer an Allison 6spd and then select 5th when I'm towing. As it stands with the 4R100 4th is too high and 3rd is too low.
i ain't rite
Joined: Mar 2005
Posts: 65,625
Likes: 5,636
From: Marlboro Mental Hospital.
that would probably cost me close to a grand to do. it was never done when i got the truck with 145k miles on it, and if i tried to remove the tube i would be putting a new manifold, tube, and sensor on the truck because everything is so corroded it would just fall apart
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
I have only cleaned my EBP tube and sensor twice in the 12 yrs/ 217k miles of my truck's life. I have an Aeroforce Scanguage and monitor my EBP, Boost, and Autometer mechanical boost readings. As long as they coincide with each other, I do not mess with the tube or sensor. The first time cleaning there was some build up in the tube, but the second was not bad at all and didn't warrant its removal.
Lead Driver
Joined: Jun 2004
Posts: 6,388
Likes: 604
From: Amarillo, TEXAS!
I pulled the sensor once, at about 215k miles and started the engine. I could feel exhaust puffing out of it so I put the sensor back in and that was the extent of it.
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Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 28
From: Mesa AZ
We're on the road in our first trip in an 02 F250 4x4 we bought this week. On relatively flat road between Houston and Dallas, and driving cautiously like aro/und 65-70, I got 16.44 mpg. Today, from Ft. Worth to Raton NM, driving 75-80 mph and climbing 6,000 ft. thru the day, I got 14.8 mpg.
Are these pretty much standard mileage numbers? Should I be able to improve upon this? Truck wasn't loaded, other than two adults and normal luggage.
Are these pretty much standard mileage numbers? Should I be able to improve upon this? Truck wasn't loaded, other than two adults and normal luggage.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
While not disputing this, I think the substantial weight difference between an OBS and a SD play a huge role.
Many here use Photobucket and post a link. I have not done this... I have a blue box next to my name. This is my way of saying "Thank you" to the forum for putting all these knowledgeable and friendly people within easy reach from my desk at home. In return, the forum gives me the space and an easy method to keep/share all my photos and diagrams.
Unrelated but how do you include pics in your posts? Do you upload them to a website and then copy the address? I am having a hard time figuring it out. I took some pics of the AIS install on stuff I saw and had questions about. You can just PM if you want, to keep the hijacking to a minimum. Thanks
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Freshman User
Joined: Oct 2013
Posts: 39
Likes: 0
Thanks for the info. I'm spending a lot of time perusing old threads here, and starting to see that people are replacing "chips" and advertising all kinds of claims. I'm still newbie enough that this is a little confusing to me. I mean, I well understand how mods to a computer program would work with a gasoline engine. Those have spark, ignition timing and advance to play with. I'm not clear on what a "chip" could do with a diesel, though. Without spark, timing, advance, etc. to manipulate, what's left? Fuel flow?
I drove up Raton Pass NM this morning, and up the other inclines on the way to Denver. I noticed that the truck does bog down somewhat on steeper hills on the relatively mildly graded interstate. I wonder how much slower it will be with a 27 ft. trailer behind it. So I'm definitely interested in anything that can help that. I know this probably isn't that politically correct, but while I am of course interested in the best mileage I can get, that's not the top priority. My top priority is to be able to haul an Airstream up any hill in the Rockies that's safe enough to go up. If mileage suffers, so be it. I DON'T want to ever be that slow bozo pulling a trailer up a hilly road at 20 mph with three miles of PO'd drivers stuck behind him.
Thanks for the help.
I drove up Raton Pass NM this morning, and up the other inclines on the way to Denver. I noticed that the truck does bog down somewhat on steeper hills on the relatively mildly graded interstate. I wonder how much slower it will be with a 27 ft. trailer behind it. So I'm definitely interested in anything that can help that. I know this probably isn't that politically correct, but while I am of course interested in the best mileage I can get, that's not the top priority. My top priority is to be able to haul an Airstream up any hill in the Rockies that's safe enough to go up. If mileage suffers, so be it. I DON'T want to ever be that slow bozo pulling a trailer up a hilly road at 20 mph with three miles of PO'd drivers stuck behind him.
Thanks for the help.
Hotshot
Joined: Dec 2005
Posts: 10,257
Likes: 7,695
From: Chino Valley, Arizona
my '97 4X4 5 speed with 4.10 gears gets 17.89 until I hook up a trailer, at 30,000 lbs I drop to about 5 or 6 towing in the mountains (see pic in signature) towed that from northern Colorado to central Arizona.
my '99 service truck 2WD about 10,000 lbs all the time gets 20, the worst was 18.6 on a long trip running 80+ mph
my 2000 excursion gets about 16, my wife commutes with it 15 miles to work, on the highway at 80 it will average about 18
my '99 service truck 2WD about 10,000 lbs all the time gets 20, the worst was 18.6 on a long trip running 80+ mph
my 2000 excursion gets about 16, my wife commutes with it 15 miles to work, on the highway at 80 it will average about 18
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 28
From: Mesa AZ
Well that, and they have a whole 'nother gear to work work. It don't care if my truck made 400hp, when I'm hooked up to 13k I need the lower axle.
Driving a GCVW of 20-21k lbs at 65 mph with 3.73 SUCKS. I'd much prefer an Allison 6spd and then select 5th when I'm towing. As it stands with the 4R100 4th is too high and 3rd is too low.
Driving a GCVW of 20-21k lbs at 65 mph with 3.73 SUCKS. I'd much prefer an Allison 6spd and then select 5th when I'm towing. As it stands with the 4R100 4th is too high and 3rd is too low.
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