4500 Fuel Mileage Testing

[Jcard]

With the H&S, deletes and a tailwind, packing a small load on the bed I am hand calcd at 13.9 mpg and the overhead reads 18.8 running 60 mph. 4.88 gears and 13,000# truck.

[Moparman]

Originally Posted by Jcard

After running my 4.88 geared 5500 for 24,000 miles I am extremely skeptical of mileage reports over 13. I get 7-12, stock, with egr unplugged.

The reason your truck gets 7-12mpg is the 4.88 rear end you have. The 4.44 would give you 2mpg more.

__________________
2006 white quad cab Dodge dually, G56, True Flow XDI air filter system, FilterMag, am/fm/cd/sirius, Fluidampr, LineX bedliner, 3.73, gooseneck hitch, Mag-Hytec rear diff cover, rear bags w/ in-cab controls, P235/80R17 Michelin LTX M&S on stock wheels

[4500?]

Originally Posted by djdc

I'm running a 07 3500, G56, QCab.
I'm thinking of trading up to a 4500 with an auto.

Here's my question:
Those of you that have the 4500 or 5500 with the auto.
1) What gears do you have.
2) Whats your RPM say at 65 MPH.
3) When you are loaded ( pulling a trailer) do you just shift into DRIVE or O/D and go, or do you have to drive in a lower gear.

My 4500 has 4.88 gears w/ aisin rpms are 2100 at 65mph. I only put in tow haul mode around town any thing over 45 just put in drive.

[Norwoodph]

I have a 08 4500 Quad Cab with hauler bed and 4.44 rear end. Only 1200 miles on it so far. Overhead console reads 16 running down the highway empty at 70-75. Heading to Texas in a couple of weeks with six horse trailer. Will do a milage check with manual calcs.

[Moparman]

6 horse that's a biga$$ trailer.

__________________
2006 white quad cab Dodge dually, G56, True Flow XDI air filter system, FilterMag, am/fm/cd/sirius, Fluidampr, LineX bedliner, 3.73, gooseneck hitch, Mag-Hytec rear diff cover, rear bags w/ in-cab controls, P235/80R17 Michelin LTX M&S on stock wheels

[Moparman]

Originally Posted by rufushusky

Wow that is really impressive for a truck that heavy!

Yeah floridagc you sure that scale was right??? Did you have two tons of cargo in the bed?? 13,600!!

If you have the quad cab the curb weight from the factory is 8259lbs so you must have put a VERY heavy bed on it;

New 2008 Dodge RAM 4500 NC 2WD Quad Cab 188 WB 84 CA Straight 6 Cylinder DG3_6-Spd Auto AISIN AS68RC Truck Dodge RAM 4500 for sale in North Carolina at Capital Chrysler Jeep Dodge Garner NC.

__________________
2006 white quad cab Dodge dually, G56, True Flow XDI air filter system, FilterMag, am/fm/cd/sirius, Fluidampr, LineX bedliner, 3.73, gooseneck hitch, Mag-Hytec rear diff cover, rear bags w/ in-cab controls, P235/80R17 Michelin LTX M&S on stock wheels

---

Last edited by Moparman : 11-19-2009 at 01:52 AM.