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Gas Mileage

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  #11  
Old 07-29-2008, 07:32 PM
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Default RE: Gas Mileage

I get decent mileage on the highway, but around my house I get HORRIBLE gas mileage, as in around 10-11, because I literally have 7 stop signs/lights in the 1.5 miles between me and the highway. Going to the grocery store (a different direction) I have 9 stop signs/lights over 2 miles. Walmart is 6 signs/lights over 1.5 miles. All that stop and go absolutely destroys my mileage.
 
  #12  
Old 07-29-2008, 09:57 PM
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Default RE: Gas Mileage

RamMan, you should not be relying on the computer to calculate mileage. There is only one way: fill it "to the brim", drive it , fill it "to the brim" and do the math. The computers are notoriously optimistic.
 
  #13  
Old 07-29-2008, 09:59 PM
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Default RE: Gas Mileage

ORIGINAL: Mancunian

2003 Hemi with quad cab 18mpg highway on cruise at 60mph. 17" wheels, 3.55 rear end all stock. 82,000miles !!
That's what mine gets. I'd fall asleep at that speed, though, so I bite the bullet and run 80.
 

Last edited by MikeHTally; 08-07-2008 at 06:59 PM.
  #14  
Old 07-29-2008, 11:30 PM
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Default RE: Gas Mileage

Alright Guys, here's some specs. 2007 Ram 1500 Quad Cab Short Bed 2WD 4.7L Flex Fuel V8 W/ stock 20's and tires, and 40 Series Flowmaster not cat back just replacement muffler. Also regular K&N air filter. Thats it!
 
  #15  
Old 07-29-2008, 11:53 PM
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Default RE: Gas Mileage

i've been doing alot of driving strictly in town and i'm down to 10 even and i drive very conservatively. during average driving (country roads) i get about 13-14.
 
  #16  
Old 07-30-2008, 04:17 AM
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Default RE: Gas Mileage

if you're using the e-85 fuel, that's why the mileage sucks. if your'e using regular petrol, then 11 sucks....either you're driving hard or something's wrong
 
  #17  
Old 07-30-2008, 08:12 AM
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When I got my truck it got 13-16 , I was driving it real hard and fast everywhere. Now I am real (REAL) easy on the gas pedal, I try to keep it under 50 mph and on the interstate I put cruise on 65 or 70. I have been getting readings off the over head console and I have been calculating by pen and paper, I have been watching it now for about 4 tanks full and I have been getting great mileage. Best yet is 24mpg. My truck is 100% stock, I am getting ready to add KN CAI and a Cat back exhaust system. Hope fully this will not hurt my mpg to bad, Ill keep ya posted.

MikeHTally, apparently you didnt read what I wrote, I do calculate it by pen an paper method. I fill it to the brim and run it till it is bone dry and calculate it, I do this on every fill up, and I go to the exact same gas station. My overhead head console info is genreally very close to what I am really getting.
 
  #18  
Old 08-03-2008, 09:34 AM
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Default RE: Gas Mileage

2003 QC SLT 4X4 HEMI 5.7L - All stock.

I consitently get 11-12 mpg on rural roads and through town. I am considering upgrades such as a K&N CAI, CB exhaust or a Superchip. Does anyone have figures on what these enhancements could do for your gas mileage?
 
  #19  
Old 08-07-2008, 07:12 AM
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I have an 03 2500 with a EOM aftermarket air filter & 315 x 70 x 17" KO's with an upgraded exhaust.

I get 11.5 to 12 MPG in and around town. On the highway with the A/C off and tailgate down I get about 14 MPG.

Before I put those tires on I had the 285 x 70 x 17"'s and I got 2 MPG better all the way around.

I figured my break even point on installing new smaller tires (285's) is 15,000 miles.

I atribute the crap gas mileage to how good the truck sounds
 
  #20  
Old 08-07-2008, 08:31 AM
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put that tailgate up phil. keeping the tail down hurts your mileage, that isn't an opinion.

superchips did not help me, and I did a good controlled test. Other's have reported superchips has given between 1-3 mpg.

I put Amsoil in the engine and in the rear diff cuz I heard it helps mileage. I was a skeptic and wasn't expecting gains, but suprisingly it did go up just a little bit. Front diff and transfer case have yet to be done, but in the end i'm now expecting about 1.5-2.
 


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