Is this bad fuel mileage?
Grand Champion
Joined: May 2006
Posts: 6,041
Likes: 0
From: Gilbert, Arizona
Shift points dont mean anything when it comes to mpg, the programers I have used in the past have netted at least 2-3mpg better over stock running the performance tune (next to nothing on their fuel saver tunes though, who would have thought that). The thing with tuners is that they adjust fuel and timing to get you a few more hp/tq and make the truck run better, thats whats giving you the better mpg.
My truck has a big cam, full bolt ons, and I drive my truck not babying it and I get still get over 16mpg city and close to 18mpg hwy.
My truck has a big cam, full bolt ons, and I drive my truck not babying it and I get still get over 16mpg city and close to 18mpg hwy.
Professional
Joined: Nov 2010
Posts: 160
Likes: 0
I was just reading this other thread in this forum about bad fuel mileage. Thought I'd ask about mine.
I recently bought my first truck, a 2004 1500 Quad Cab 4x4 Laramie with the 5.7L; I used to have a 2003 Jeep Liberty Renegade 3.7L before this one, so still adjusting to the gas bills. But I thought the truck would give on average 13mpg city and 17mpg hwy. Over the last week, it's averaged at 10mpg, and I have not once had the RPM higher than 3000, so not pushing it or anything like that, but it has been 90% city driving.
Is this normal? In the other thread guys are talking about programming chips? Are these chips add ons that help fuel economy?
I recently bought my first truck, a 2004 1500 Quad Cab 4x4 Laramie with the 5.7L; I used to have a 2003 Jeep Liberty Renegade 3.7L before this one, so still adjusting to the gas bills. But I thought the truck would give on average 13mpg city and 17mpg hwy. Over the last week, it's averaged at 10mpg, and I have not once had the RPM higher than 3000, so not pushing it or anything like that, but it has been 90% city driving.
Is this normal? In the other thread guys are talking about programming chips? Are these chips add ons that help fuel economy?
Thread Starter
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Registered User
Joined: Jan 2011
Posts: 19
Likes: 0
I guess it a Canadian thing then cause I live in Toronto
Registered User
Joined: Jan 2011
Posts: 12
Likes: 0
How are you guys computing your mileage numbers? GPS? Manually from the odometer reading between fillups? The digital "mpg gauge" readout?
I think gps numbers would be the most accurate, followed by the odometer reading. But if the odometer calibration is off due to other than stock size tires it'll skew the result. I don't trust the factory mpg gauge at all. It's telling me I'm averaging 13 or so but I seem to burn up 30gal awful quick.
I think gps numbers would be the most accurate, followed by the odometer reading. But if the odometer calibration is off due to other than stock size tires it'll skew the result. I don't trust the factory mpg gauge at all. It's telling me I'm averaging 13 or so but I seem to burn up 30gal awful quick.
Thread Starter
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Registered User
Joined: Jan 2011
Posts: 19
Likes: 0
How are you guys computing your mileage numbers? GPS? Manually from the odometer reading between fillups? The digital "mpg gauge" readout?
I think gps numbers would be the most accurate, followed by the odometer reading. But if the odometer calibration is off due to other than stock size tires it'll skew the result. I don't trust the factory mpg gauge at all. It's telling me I'm averaging 13 or so but I seem to burn up 30gal awful quick.
I think gps numbers would be the most accurate, followed by the odometer reading. But if the odometer calibration is off due to other than stock size tires it'll skew the result. I don't trust the factory mpg gauge at all. It's telling me I'm averaging 13 or so but I seem to burn up 30gal awful quick.
All Star
Joined: Sep 2009
Posts: 898
Likes: 0
From: California
I use odometer ratings, and my Droid has a Mileage app that I use. It is really nice because it shows how you are doing mileage wise and you can add comments.. For example I leave a small comment every time I add something to the truck, such as a K&N air filter, or exhaust.. That way you know if you are getting better mileage or worse mileage and can track it on the App. The App also shows Fuel prices and will find the cheapest gas around according to your GPS location. 
I love my Droid
I love my Droid
