2 Questions?
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2 Questions?
I am a new psd owner about 2 month to be exact. I have already changed oil,
changed fuel filter and had to replace a CPS. I have done quite a bit reading on here and learned quite a bit. I have two somewhat different questions.
1. Fuel Mileage: I have a 02 PSD super crew 4x4 with 373 gears completely
stock as far as I can tell. I am averaging about 11 to 12 mpg is there anything I can do to increase the fuel mileage? I dont tow anything I average around 70-75 mph on highway and the tac sits around 2K rpms give or take a little.
2. Road Trip: I am getting ready to go on a road trip and is there anything particular that you guys would recommend checking before leaving?
changed fuel filter and had to replace a CPS. I have done quite a bit reading on here and learned quite a bit. I have two somewhat different questions.
1. Fuel Mileage: I have a 02 PSD super crew 4x4 with 373 gears completely
stock as far as I can tell. I am averaging about 11 to 12 mpg is there anything I can do to increase the fuel mileage? I dont tow anything I average around 70-75 mph on highway and the tac sits around 2K rpms give or take a little.
2. Road Trip: I am getting ready to go on a road trip and is there anything particular that you guys would recommend checking before leaving?
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Joined: Aug 2005
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From: MA
Originally Posted by spunout
I am a new psd owner about 2 month to be exact. I have already changed oil,
changed fuel filter and had to replace a CPS. I have done quite a bit reading on here and learned quite a bit. I have two somewhat different questions.
1. Fuel Mileage: I have a 02 PSD super crew 4x4 with 373 gears completely
stock as far as I can tell. I am averaging about 11 to 12 mpg is there anything I can do to increase the fuel mileage? I dont tow anything I average around 70-75 mph on highway and the tac sits around 2K rpms give or take a little.
2. Road Trip: I am getting ready to go on a road trip and is there anything particular that you guys would recommend checking before leaving?
changed fuel filter and had to replace a CPS. I have done quite a bit reading on here and learned quite a bit. I have two somewhat different questions.
1. Fuel Mileage: I have a 02 PSD super crew 4x4 with 373 gears completely
stock as far as I can tell. I am averaging about 11 to 12 mpg is there anything I can do to increase the fuel mileage? I dont tow anything I average around 70-75 mph on highway and the tac sits around 2K rpms give or take a little.
2. Road Trip: I am getting ready to go on a road trip and is there anything particular that you guys would recommend checking before leaving?
The only sure fire way to get better gas mileage is to stay off the pedal.. If you kept it at 60 mph your mileage would increase but the fun factor will go down.
You didn't mention if you changed the air filter.. Getting more air would help a little.. Don't go getting a K&N or similar intake they are a waste of money..
Tires can also help. If you have big mudders they will reduce mileage.
Just a few items to ponder..
Cargo Master
Joined: Jun 2003
Posts: 3,292
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From: Ardenvoir, Washington
I agree with donjamer.. you have to back off to about 60 or 65 mph to get better mileage.. I have a 4- 10 in my dually and i get 15 empty.. You should be getting around 16 or or better. I assume you have an auto tranny.. sticks get alot better. Install a napa 6637 air filter and do alittle exhaust mod's and it should help.. Welcome to the forum..
Post Fiend
Joined: Jul 2005
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From: 21791
hmm that is a really low reading you get especially on the highway. is that hand calculated or with the overhead "Lie-o-meter"? after my fuel system and a 40 mile stint on the highway last night it said 19.6 mpg but i know i was getting somwhere near 13. yes it is low but my shoe is alot heavier than most.
are you sure your front hubs are not locked in? that can really pull down the mileage, it adds resistance. jack up each wheel one at a time and see if it spins freely (front). may have some brake dragging problems holding you back (pun not intended) or something like that. other than that, run a good additive in the tank such as DieselKleen or Powerservice. or better yet, run Biodiesel if you can.
are you sure your front hubs are not locked in? that can really pull down the mileage, it adds resistance. jack up each wheel one at a time and see if it spins freely (front). may have some brake dragging problems holding you back (pun not intended) or something like that. other than that, run a good additive in the tank such as DieselKleen or Powerservice. or better yet, run Biodiesel if you can.
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Originally Posted by strokin_it7.3
hmm that is a really low reading you get especially on the highway. is that hand calculated or with the overhead "Lie-o-meter"? after my fuel system and a 40 mile stint on the highway last night it said 19.6 mpg but i know i was getting somwhere near 13. yes it is low but my shoe is alot heavier than most.
are you sure your front hubs are not locked in? that can really pull down the mileage, it adds resistance. jack up each wheel one at a time and see if it spins freely (front). may have some brake dragging problems holding you back (pun not intended) or something like that. other than that, run a good additive in the tank such as DieselKleen or Powerservice. or better yet, run Biodiesel if you can.
are you sure your front hubs are not locked in? that can really pull down the mileage, it adds resistance. jack up each wheel one at a time and see if it spins freely (front). may have some brake dragging problems holding you back (pun not intended) or something like that. other than that, run a good additive in the tank such as DieselKleen or Powerservice. or better yet, run Biodiesel if you can.
Will the Napa filter give better air flow than other filters ie fram, stp, etc...?
Cargo Master
Joined: Jun 2003
Posts: 3,292
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From: Ardenvoir, Washington
Here is a forum link to mod's and info about your SD.. If you do the 6637 air filter mod, suggest also doing the CCV (crankcase vent).. you can do a search and find info on how to do it.. You can probably do both of them for under $75.
https://www.ford-trucks.com/forums/s...78#post3746678
https://www.ford-trucks.com/forums/s...78#post3746678
Of the next Riffraff East
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From: Concord NC
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Originally Posted by zx250
What size tires are you running?
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Of the next Riffraff East
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From: Concord NC
Stock size for you truck is probably 265s. Any thing larger will show lower MPGs. I average 14-17mpg and I have a very heavy foot. You should do about the same or better. Check your hub like Kris suggested and look at the other things suggested here. The larger filter will help some. It will certianly offer better air filtration. Let us know what you find.
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Originally Posted by zx250
Stock size for you truck is probably 265s. Any thing larger will show lower MPGs. I average 14-17mpg and I have a very heavy foot. You should do about the same or better. Check your hub like Kris suggested and look at the other things suggested here. The larger filter will help some. It will certianly offer better air filtration. Let us know what you find.
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by spunout
The tires are 265's I will check the hubs soon and let you guys what I find out. As far as the CCV mod what is the advantage and what exactly does it do that the stock set up doesnt?
As for the fuel economy, I have 285s and get anywhere from 12 to 15 around town driving like an idiot because of my exhaust note and chip
. When I get on the interstate, I can get better yet but usually don't because 65 mph just doesn't cut it here on the interstate. If you can keep her below 2k rpms you can really do quite well. I just can't do it.
Lead Driver
Joined: Oct 2004
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From: Columbia, MO
Don't forget about an aftermarket exhaust. The stock one can be a little restrictive. Changing the air filter to the 6637 and a nice free flowing exhaust will help with fuel mileage. Remember that the engine is basically just a big air pump, and the easier it can get air in and out, the better the fuel economy will be.
As far as road trips, I just saw a thread not very long ago asking the same question. You might search for it, as there were quite a few useful replies.
As far as road trips, I just saw a thread not very long ago asking the same question. You might search for it, as there were quite a few useful replies.
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
JT is right, there are some things you can do, modify driving habits, tire size and inflation, and even gearing. What you cannot modify is vehicle weight and frontal area. Pushing that 4 ton brick through the air at any thing above 55 mph shows a marked decrease in fuel economy. The faster ya go, the worse it gets. Wind resistance becomes the #1 enemy to your wallet.
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i know this is gonna make alot of ya'll mad but its fun to whatch ya'll scream and yell so im gonna say it. your biggest probelm w/ your fuel milage is that you have 2 to many cylinders and they are at the wrong angle chop the back 2 cylinders off and stand them all up straight and you'll see 18 or better doing 70@2k rpm other then that all the rest of the problems are circled for you on the truck
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by mhannink
i know this is gonna make alot of ya'll mad but its fun to whatch ya'll scream and yell so im gonna say it. your biggest probelm w/ your fuel milage is that you have 2 to many cylinders and they are at the wrong angle chop the back 2 cylinders off and stand them all up straight and you'll see 18 or better doing 70@2k rpm other then that all the rest of the problems are circled for you on the truck
Thanks for giving me a chance to use the new smilies.