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Discussion Starter #1
i've been hesitant to get a tuner because i didn't want to have transmission problems, well recently my tranny died with a stock truck. figured since it has to be rebuilt i'll go ahead and have it upgraded a little. Now that it's upgraded i would like to get some better mpg with a tuner, best i've seen so far is 13.5 with the wife driveing and 7 while towing my 34" fully loaded gooseneck. what tune should i get? I'll probably set it on that tune and forget it. i'm not looking for more power, just want better mpg without hurting tranny or engine when i decide to tow. I just want a general tune for everything, dont want to constantly be changing stuff.
 

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For what you want stock is probably youre best bet. When you order a chip most come with at least 6 different positions. You dont have to fill them. If you do get a chip i would recamend a daily driver tune and a tow tune. That is 2 tunes which will yield you the best milege and drive ability.
You can also contact one of the custom tuners and talk with them and tell them exsactaly wht you want and they will be able to write you a tune or 2 for youre truck and wht you want to do. I would get atleast 2 tunes.:nod:

I run TW but there are others.:thumb:
 

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13mpg average and 7mpg towing????? What the F*CK?? Thats not normal dude. I get 17.xmpg mostly city driving, when I'm having fun with the truck.. thats takin it to redline several times a tank. I got 536 miles w/ 130 miles being highway w/ 3 adults, 1 baby, and a stroller in the trunk, and the rest of the mileage in nut to butt city traffic. Most people get like 13mpg-ish when towing. Something is not right.

But getting a tuner will normally yield BETTER mileage assuming you go w/ custom tunes. I'd tell you to go w/ TW. I've seen a LARGE portion of these trucks get 25mpg highway w/ a custom tuner, exhaust and intake.

I've heard that the Extreme setting from tony wildman will yield the highest hp/tq, and if you keep your foot out of it the best mileage too. Sounds win/win to me.
 

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with my tiny single shots and Swamps tunning I get 19-20mpg. This is with over 250,000 on the odometer!
 

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Mine has 300900 mi on it and towing 8,000lbs it averages 10mpg at 70mph with 4:10 gears in the rear. I just bought a chip from Power Hungry Performance and I hope to pick up 3 to 4 mpg towing nothing and at least 1 or 2 mpg towing. I bought the FU chip package so I can change my tunes myself it come with over 20 tunes for my truck from smoke show to 140hp extreme. I will post about it once I get it installed.
 

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Discussion Starter #6
I got 4.10 too, when i got 7mpg i was hauling around 18k at 75mph, that seems OK to me but i would definitely like more mpg when not towing anything, which is like 95% of the time.
 

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I've heard of people towing 20k and STILL gettiing better mileage than that. Most people dont dip below 12mpg towing on the highway.
 

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Most people say once you go over 70-72 mileage starts to drop. I cruise at 70 on the highway no matter what I do. Mileage can matter on many things. My neighbor has a little 4 cyl acura integra and my 01 camaro ss with a 5.7 got better mpg than his integra. Plus if he runs the a/c he loses quite a bit more too. I dont know if that is true on diesels but I know on gassers a/c kills fuel economy. I never use it anyway, I got 360
 

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^Ya those SS's are a work of genius man. The LSx series motors are out of this WORLD.

I dont think ac taxes fuel economy that much on diesels. But I could be wrong
 

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Wat kind of trucks are yall driving getting 17 Ive never seen more than 14 hwy and 9 pulling 16,000:dunno::dunno::dunno:
 

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Stock 1999.5 PSD w/ hand shaker and tymar intake.17+mpg city driving
 

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Idk how much I get im always in the peddle half of the time anyway. People like to ride your *** around here
 

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I normally get around 20ish no matter where I drive. This is usually on my extreme and daily driver settings.
 

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Idk how much I get im always in the peddle half of the time anyway. People like to ride your *** around here
I pretty much rest my foot on the pedal and drive. Barely touching it. Thats where the good mileage comes from. People ride my *** around here too but you know what? I drive a ****ing 8,000 lb truck so you better find a way around my *** if you feel the need to drive like speedy gonzalez!

I normally get around 20ish no matter where I drive. This is usually on my extreme and daily driver settings.
Thats pretty good. I cant wait to get my exhaust and tune on this thing. I have no doubts I'll be around 20-21mpg city and 25mpg highway.
 

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Yes, I usually dont care either. Go ahead you rear end me its your fault no matter what a new tailgate would look sweet. Then I can get the 08 tailgate!
 

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lol hell ya! I never really thought about it that way!
 

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I just drove Albuquerque to Sedona, AZ got 410 miles on a tank calculates to 16.74 MPG drove 80MPH 4 Adults & 10 year old plus luggage I thought it was pretty damn good,,
 

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Discussion Starter #20
i've just torn apart the whole top of the motor looking for an oil leaking, found out it was comeing from one of the oil lines that goes from the hpop to the fuel injectors "low fuel pressure", also alot of oil in the intake tubes and was leaking past to boots "boost leak" ccv mod is next.
 
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