vehicle fuel milages

[circleTfarm]

we just got back from pittsburgh 130 mi round trip.
filled up when we left, burned 1/4 tank /forums/images/graemlins/frown.gif 14 to 14.3 mpg 68mph is just at 2000 rpm not excessive to me... haven't checked clamps, had to leave to early today (to tomorrows to do list) but no smoke it seems to be burning clean, if i matt it to the floor a little smoke happens but not like alot of diesels i see on the road..we have tried bp ,exxon,loves truck stop wall mart fuel stop the best it ran was flying J in columbus
I will check the clamps tomorrow , we have already been told by ford theres no specs on diesel engines

 

[CTyler]

A long shot but if your truck is 4WD are your hubs unlocked? Is it turning the transfer case?

 

[circleTfarm]

your thoughts like mine already checked hubs, habit from work (surface coal mine) always locking in and out pit truck,

 

[circleTfarm]

just found out it might be the motor,, I hope to find out more info in days to come ,, something about ford putting problem 2003 6.0Lpsd in2004 model year and according to info we got tonight it's a big no no for ford to do www.flatratetech.com
6.0L psd fourm

 

[Farmwithjunk]

My ride is an '04 Dodge 2500, 4WD, X-cab, HO Cummins, auto, 4:10 gearing. I've found that my milage varies from one extreme to the other.

On the highway, without a load, and at 55 MPH, I get 19 to 22 MPG, depending on the road. (hilly or flat) Bump the speed up to 70, and we drop down to 15 or 16 MPG.

In town, running empty, expect 10 to 12 MPG.

Then when I hook up the gooseneck, and load up a tractor, the bottom falls out of the fuel tank. 14 Highway, and maybe 8 or 9 in town. (City driving shows very little difference loaded or empty)

When I first got this truck, I had my foot through the firewall a few times a day. That doesn't help milage at all. I've learned to "drive effeciently" since fuel prices went nuts.

I use my truck to drag around a trailer more than without. The diesel is still far more practical than a gasser for that. (MUCH better performance.) Fuel vs. Gas prices create a wash on which is cheaper to fuel, but long-term reliability and over-all performance gives the nod to the diesel.

There's been issues with automatic trannies behind diesels. The same thing that nets better fuel economy will make that auto live longer too. DON'T MAT THE THROTTLE.

 

[Bob_Young]

'94 Cummins (12V) Dodge 2500 2WD, standard, w/3.55 in the rear will get 24 to 26mpg highway, running empty or nearly so. If I try to push it, it'll drop to 22mpg. Truck only has about 34K on it to date.

On a long haul across Ohio and NY on I90 with about a ton in the bed and towing about 6000# it got 18mpg with speeds between 70 and 80mph (sometimes higher /forums/images/graemlins/blush.gif) ). No matter how fast you went, there was always more on tap.

The secret for this truck is to shift at the lowest RPM possible and to accelerate gradually.

Rust will get this old gal long before the drivetrain cashes in. When that happens, I'll look for a newer 2500 with a bad motor and make a swap.

I agree with the earlier comment about the idiot horsepower wars. It ruined a good thing with this engine. Trucks are for hauling, not racing. Can't understand why Chrysler can't offer an economy tuned version for those who don't want to race. But I guess that's too much to ask from a company that eliminated the Neon and brought out the Hemi Charger just when gas went to $3.00 per gallon /forums/images/graemlins/crazy.gif .
Bob

 

[Dirtball]

2005 Chevy Suburban 3/4 ton 8.1 / 4.10 rear. 11-12 mpg combined. Definitely gets worse with use of A/C or sustained highway speed over 65. Can get 12.5 mpg taking it easy.....Though my 48,000 lb MCI Bus motorhome conversion gets 5-6mpg with a Detroit Series 60 470hp/1650tq , also worse with coach A/C on or speed over 65

 

[MaterDei]

I get about 38mpg in mixed driving. If I control my lead foot and stay around 70 I can get about 45mpg on the freeway when the A/C is not on.

My ride is an '04 VW Jetta TDI Wagon. /forums/images/graemlins/shocked.gif

 

[thatguy]

I wonder if ppl are actually calculating (miles/gal = mpg) or using the trip computer to tell them the mgp. From discussion at the dieseltruckresources forum the computer appears to not be very accurate at times.

My 2002 Dodge 2500, cummins, 4x4 3.55 rears gets about 16 to 17 around town and when pulling my popup camper (3,000 lbs). Add the tractor or running in snow using 4x4 (with idle time to warm it up, cleaning it off) mileage drops to 14 to 15 mpg.. On a trip running between 60 and 70 mph it will get right at 20 mpg maybe a couple 1/10's over.

My dads 97 dodge 3500 2wd, will get closer to 22-23 on a trip with (at the time pulling a smaller popup), I think he gets around 17 - 18 around town.

 

[circleTfarm]

we check mpg by fuel divided by miles we don't rely on overhead comp.