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01:04:04 - 12/20/2024
General Dakota Board
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Greg
Dodge Dakota
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3/02/2005
11:43:30
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 Subject: 1999 3.9 Low MPG
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Message:
I just checked my MPG yesterday after getting gas and was suprised to only get 206 miles out of the tank. I put in 17 1/2 gallons = 11 MPG. I had been getting around 14 - 15 MPG? I only drive about 15 miles a day and it is all in town / back roads and don't get over 45 MPH. Truck runs great and has 59000 miles.
What kind of milage is should I be getting. I think the sticker said 16/22.
I bought the truck used about a year ago but had no maintence records?? Acording to the manual there is a lot of maintence that needs to be done at 60000 miles. Dealer quote for the major service at 60000 miles is over $600! Would like to try to do at least some of it my self. Plan on getting a service manual and digging in.
Has anyone done this service, if so how hard was it and do I need any special tools?
Thanks so much and any help would be much appreciated.
GregH
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me too...
Dodge Dakota
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3/02/2005
12:24:47
|  RE: 1999 3.9 Low MPG
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Message:
i get 12-13, but i run 32x11.5...before that however i got 13-14. this seems way low for a v6 truck that i only drive around town. any info?
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Dex
Dodge Dakota
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3/02/2005
14:53:56
| RE: 1999 3.9 Low MPG
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Message:
You can't judge mpg very well on 1 tank.
I get 17.5 with my 3.9 in city driving and 21-22 highway.
Track you mpg over several tanks - if it remains 11mpg there is a problem.
2000 Quad Cab 4X4-Sport V-6 Automatic Sports Plus Package
31X10.5 tires, Limited Slip, 3.55 Gears, Trailer Tow Group, HD Package, Skid Plates, LineX Spray in bed liner; Added:Airaid air filter & heat shield, Flowmaster 3 chamber muffler, Steel Horse Torneau cover, front hitch, Autolite Double Platinum 3923 Plugs, Removed air horns from Throttle Boddy, added new TB bolts, Cool Tape around air filter and A/C tubes, Amsoil in: crank case, differential and tranfercase.
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