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94 5.2l 5spd bad mpg's!!!!!

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  #21  
Old 11-17-2011 | 09:38 AM
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Like previously stated, there are many things you can do to help get better mileage.

Replace the o2 sensor, reduce weight of truck, keep tires inflated, clean/replace the Idle Air Control, TPS, fuel treatment, new injectors, take off the throttle body and give it a good cleaning, don't drive with a heavy foot, and many more. These are things that the average person can do, too, instead of taking it to a shop.

I had done a majority of those things to my old '96 v6 and got up to 21+ mpg on highway.
 
  #22  
Old 11-17-2011 | 10:41 AM
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Originally Posted by Hahns5.2
Air filter and TB spacer wont do anything.

Look at the stock intake, it IS a cold air intake.
+1 to that. The stock system is just fine. Most Dakotas come with that plate removed so it is not only a cold air intake, for most it is a Ram air as well.



Originally Posted by Bump
I tried last night on the way home. Unless my truck is geared differently, it doesnt start moving until like 1300 rpms and wont even up shift until like 2000. It might be possible to drive like an old @$$ and keep it under 2000rpms, but definitely not 1500.
1,500 was an exaggeration, but ya 2,000 might be a good starting point. And yes at that low RPM you will be driving like an old fart. But that is the #1 thing to get better MPG, that and ride a bicycle or WALK. LOL Like why do we want to to do that.
 
  #23  
Old 11-17-2011 | 10:44 AM
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Originally Posted by Crazy4x4RT
1,500 was an exaggeration, but ya 2,000 might be a good starting point.
You had me wondering about my gearing noting that you could drive around under 1500! haha

If it makes anyone feel any better, I was watching American trucker last night and they dug a 60's GMC cab over out of the trees. I was shocked to see it had a 318 V8 for a power plant. Obviously not the same motor, but impressive none the less that they were putting the same displacement motors in SEMIS back in the day.
 
  #24  
Old 11-17-2011 | 11:05 AM
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Originally Posted by chaindrive67
My 93 3.9 4X4 with 235 75 15 tires gets 17mpg hwy, 11mpg in town. My tach sits right on 1,600 rpms @ 50mph. 1,800 @ 55mph. It slows down real fast when I let off the gas. If it "free-wheeled" more, I'll know I'd get better mpgs!
You have a problem somewhere. You shouldn't have that much resistance when you let off the gas. You didn't say if it was auto, or manual though. If it's auto, pop it into neutral when you let off the gas and see if you have the same resistance.
 

Last edited by g. man; 11-17-2011 at 11:13 AM.
  #25  
Old 11-17-2011 | 10:39 PM
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Yeah, sorry! Its an auto. I did try the nuetral idea, and made very small diff. I put on all new brakes, rotors, pads, drums, callipers, brake lines...so I know its not a brake issue. In the spring I'm gonna do the front hubs, ball joints, a-frame bushings, and alignment. Tires are always aired up to par.
 
  #26  
Old 11-18-2011 | 08:37 AM
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so filled up last night and thank god our fuel is finally coming down (3.45) and calc'd it out at 15.7 that's driving mostly highway with a small amount of in town (the town i live in can be driven thru in about 3 minutes)
 
  #27  
Old 11-18-2011 | 01:47 PM
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Dang! Gas here in Albuquerque New Mexico it is $2.96 and its been that low for a few weeks.
 
  #28  
Old 11-18-2011 | 05:10 PM
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WTF. I havent seen it below $3.50 in a year or so.
 
  #29  
Old 11-18-2011 | 06:40 PM
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That's great mileage! I get about 13mpg's. 147,250 miles, 4x4, 5.2L v8, larger tires (33's I believe). After reading this, I'm thinking about seafoaming, LOL!

Gas here has been about 3.29-3.39 for the past month or 2.
 

Last edited by ColinSLC56; 11-18-2011 at 06:46 PM.
  #30  
Old 11-19-2011 | 06:20 AM
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You guys suck and your good gas prices! lol
We're a 1.09 a litre up here right now, costs me around 70$ to fill my tank
 


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