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texaslawdawg
Dodge Dakota
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1/17/2003
14:08:37
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 Subject: Major MPG loss after mods ??
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I need help ! I have a 2002 R/T with only 4900 miles on it. When I first bought the truck I put a Airaid Intake with a K&N cone, I checked the MPGs and they were 12 in town and 15 on the highway. In the past few months Ive done several mods in a short period of time and did not check the MPGs with each mod. I added MOPAR wires, 3923's, brass cap, 180 t-stat, 50mm TB, Gibson muffler, and the B&G Chrysler PCM flash. Now, the past two tanks Ive got 9 mpg !!! Thats a combination of city and hwy driving. I was under the impression that these mods would either help or atleast keep the milage about the same. I plan on 1.7RR's and 4.56 gears next month, could I get down in the 7 to 8 mpg range !!!???
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Tim R.
Dodge Dakota
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1/17/2003
14:41:17
|  RE: Major MPG loss after mods ??
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Message:
My 96 CC Dak got around 13mpg. Then I put on a homemade cold air intake and it went up to about 15-16mpg. I was happy so I put on a Dynomax muffler. It dropped back down to 13mpg. :(
So, the muffler may have done it to you.
Tim R.
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Dak03ta
Dodge Dakota
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1/17/2003
15:22:42
|  RE: Major MPG loss after mods ??
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My MPG's went down (16.5 - 15) over the last few months as well. I blame the cold winter weather and the gasoline that goes with it.
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rtdkota
R/T
1/17/2003
15:46:24
| RE: Major MPG loss after mods ??
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Message:
Running 1 step colder plugs+180 T stat, you'll suffer a mileage drop... On top of that, who knows what the B&G is doing for you. Have it dyno'd and do a A/F test, and see where you are.
Have you reset your PCM??? Always check your mileage accurately, not with the overhead.. Custom flashes have a tendency to make the overhead off by quite a bit sometims.
Sam
RTDKOTA
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