Most Miles per tank???

[2Gen3Gen]

900 miles? Guess I didn;t read that part :--)



Yes the short beds have a 34 gallon tank (per dodge) and the longbeds a 35 gallon (again per dodge).

Last year dozens of guys were making claims of getting 30 mpg and so on. It really got a bit funny. I can see a possible 23 mpg as i have done that, but that was on the total flat with cruise control on. Totally ideal cond and I got 23. 7 mpg. In the REAL WORLD, these trucks get 15-16 in town and 17-20 on the highway, depending on 2wd or 4wd and auto and 6 speed. Also how fast you drive.

 

[Sled Dog]

1. Two people have claimed that they've been able to pump SIGNIFIGANTLY more fuel into the stock tanks than the listed capacity. (38 gallons and... 42 gallons!!!) My bull**** detector just started beeping.

I have an 05 QC,4X4,LWB,SRW 3500. Ran it WAY LOW, pulled tank and installed vent bomb. It had at most 1 quart of fuel. My buddy followed me slowly for 5 miles after install to fill-up.

It held 37. 04 gallons at the lip. Max tank 563 miles, 37. 04 gallons.

You won't get 38 gallons in an 05 LWB.

 

[crobertson1]

I don't get it. My average mpg showed it was getting 17. 7 mpg and I filled up and the DTE said 392. What gives? I frequently tow and only get 11-12 mpg. Is that burned into the memory of the overhead or something? Doesn't it stand to reason that if it's getting 17. 5 mpg and has even 34 gallons in the tank, that it should show 578 on the DTE?

 

[MSLiechty]

The short bed does hold less than the long bed. 2 gallon difference I believe!

I have done the fuel tank vent mod and the most I have squeezed in is 35+ gallons and that was with fuel visable in the filler neck.



Think I'm gonna try resetting the trip odometer at the same time as the overhead.



I'll post results in a couple weeks when I fill up again.



Michael

 

[ndennis]

Sorry Gifford: Mine holds more than 37. 7gallons(personally put that much in several times)... so no bull**** here. Have to be patient to fill it to the rim. I have gone as far as 675 miles with an overhead reading of18. 5-19. 0 and it is usally within 0. 5-0. 6mpg of actual hand calculations. I have not run it dry and no looking forward to doing that, but 42 might be possible.

N Dennis

 

[JOblenes]

How is the reserve taken into account

I don't have my owner's manual with me (drove car to work today) but I am sure that I read that my truck has a 128 litre tank (34 US gal) and that it had an additional 8% "reserve" capacity. This was either in the owner's manual or on the window sticker (which i still have), I'll look when I get home. Perhaps this is the source of some of the confusion around the tank volume 34*1. 08=36. 72, that and the fact that the 34 gal might be a little off to begin with.

 

[Gifford]

bs detection

I've got $100. 00 for the first guy that can physically prove they get 42 GALLONS into the stock, unmodified tank. (Vent mod notwithstanding. )



I've got 500. 00 for the first person to go 900 miles on a stock tank-full and I bet there are any number of engineers in detroit that would like to speak to you as well, since the efficiency your boasting about (25+MPG in a 8,000lb vehicle) is higher than anything currently in production HYBRIDS included...



Theres only two possibilities here:



1. The fuel pumps at the station are not calibrated and are over charging you



2. My BS detector IS calibrated and correct.



:-{}

 

[2Gen3Gen]

Sorry Gifford: Mine holds more than 37. 7gallons(personally put that much in several times)... so no bull**** here. Have to be patient to fill it to the rim. I have gone as far as 675 miles with an overhead reading of18. 5-19. 0 and it is usally within 0. 5-0. 6mpg of actual hand calculations. I have not run it dry and no looking forward to doing that, but 42 might be possible.

N Dennis

As for the amount you have put into your tank, I would question the dealer that most likely is cheating you on their faulty pumps. as for getting 675 miles from a tank and the DTE, I see you have a 2 wheel drive truck. That explains the better mileage. Most of us have 4x4's which dont do as well in the mpg department.

 

[Spooled-up]

I've got $100. 00 for the first guy that can physically prove they get 42 GALLONS into the stock, unmodified tank. (Vent mod notwithstanding. )

Just to clarify, you can get the same amount of fuel into the tank with the vent mod as you can without. The real benefit is the time it takes you to do it. 8-15 min without the mod, and 1 minute or less with it.



The best I've done on one tank in my longbed is 695 miles. I averaged 19. 5 mpg (hand calculated) on that entire tank. All highway and cruise set at 69 mph most of the way from Cincinnati to Lancaster, PA.

 

[Eric_77]

Okay to try to quell the BS meters



The tank is plastic and defroms my 96 tank has now deformed so much that it only holds 33 gallons, new it held 35. Those that cannot get 33-35 gallons in their tanks have one of two problems the gas gauge is off slightly thus filling up with 5 or more gallons remaining or their tank has started to defrom and does not hold the 38+ gallons of a completely full non-defromed tank.

 

[ndennis]

2Gen3Gen: You are right about my truck being 2WD. What you don't know is that it has a Harbor Utility Body(no overhead rack though) which is not all that aerodynamic when compared to the stock 8-ft bed. The truck's certified empty weight is 7450 lbs. The weight with all my tools and parts is around 9000 lbs. On the highway I limit my cruise speed to 2000 rpm(about 67-68mph). Lately, I have been driving 50-50 to 60-40 highway/city combination and alot of this is during height of rush hour traffic. I have been short-shifting 1500-1700 shift point and conciously trying to be easier on the throttle. It just turned 42,000 miles and the last 6 fillups the overhead has been showing 19. 0-19. 5 with hand calculations consiitently 0. 5 mpg less. I am concious of the cost of fuel and I have been using a new(to me) place that 10-22 cents less than anyone else in the area. I would love to see what kind of mileage it would get with a truely stock vehicle. Right now I am please with the mileage... probably as good as the 2000 I also have. What it lacks(when compared to the 2000) is: pure acceleration. The 04. 5 is a dog compared to the 2000(which has Edge EZ and DDII's and a much lower curb weight).

N Dennis

 

[KDillard]

No BS here guys. I went on a roadtrip last month. Drove from DC to Bedford. I had to cross over the Peaks of Otter which is a slow winding mountain pass. I returned home on the same tank and drove for 3 days. Total miles was 648 miles and still had about a 16th of a tank left according to the guage. All this was on a brand new truck with under 1200 miles. Now im at 2600 miles and still am getting an average of 21mpg on the highway. Combined mileage is about 17. The most that i have been able to stuff in the tank was 35gallons at a 1/8 tank. I to am very fuel concious and also lay easy on the throttle . I also have the muffler eliminator from geno's but that and the juice was done after that trip. I averaged 19. 8 mpg on that trip and was within . 3 mpg of hand calculating it.

 

[Patriot_RAM]

Surely if my 4x4 can get over 820 miles going 65mph from topped off to empty, you would think that a 2x4 lwb topped to empty could get 900 miles going 55mph on level highway with the a/c off.

 

[stokede]

Well then measure it...

Why doesn't somebody go buy an OEM Plastic Tank for a long bed quad cab and fill it up with water and weigh it. Weigh the tank empty too and give me the weights and we will find out exactly how many gallons she can hold.

Oh by the way the most I have posted on my DTE is about 750 miles. Every improvement has bumped it ever so more. If you want more range then slow down, 60 mph is good but 55 mph is optimum, hence the old speed limit of 55 mph from way back when Elvis was around.

_____________________

2003 Cummins HO 6 Speed, 3. 73, AFE Magnum Flow, Silencer Removed, Tornado, 4" MBRP Muffler, all at 24 MPG plus. :-laf

 

[klenger]

Why doesn't somebody go buy an OEM Plastic Tank for a long bed quad cab and fill it up with water and weigh it. Weigh the tank empty too and give me the weights and we will find out exactly how many gallons she can hold.

No flame intended, but let me understand this correctly. You want one of us to buy an overpriced fuel tank from Dodge, fill it up with water (that's good for injectors), weigh it, just so that you can satisfy you curiosity?

 

[Drewhenry]

Bs Meter Needs Recalibration

I had about 200lbs of unlisted tools plus luggage-80lbs-plus me-280lbs onboard on my last trip from Corpus Christi,Tx to Venus,Tx. My trip is 442 miles plus a week of driving to work-300miles+ weekend driving. It took 38. 4 gallons to the top. This was my best ever-22mpg(20 by computer). I drove 65mph on road,NEVER touched 1st gear and avoided 2nd gear like the plague. I have on other occasions made 20-21 on these trips. I average 19. 5 "in town"-mostly freeway. Any doubters need to put a brick under the accelerator and if empty launch-it in 2nd or 3rd. Also stay under 2000Rpms!!! :--)

 

[DSpencer]

I have done 700 exactly filling both times at the same pump and seeing fuel put in 31. 2gals. Three people@550lbs+ toolbox and the trip from here in Grand Prairie to my parents near Leesville (5 miles north of Nixon). From there to my brothers new house in Buda, his daughters house in south Austin and home. Tried to drive 65 on the freeway and the speed limit on the other roads.

I have only done one trip under 20 mpg on the highway and that was with 5 people@900lbs plus luggage for a 7 day cruise driving like we didn't want to stay in that truck any longer than we had to at 80 most of the way and that tank ran 19. 5.



My fuel gauge doesn't read right so I always fuel up when I feel like I have burned 30 gallons when on the hwy.