does mileage REALLY get better? Poll?
Registered User
Joined: Apr 2004
Posts: 92
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From: Vermont
600 mileage chart
Here is my mileage chart since I bought mine 3 months ago. The numbers speak for themselves.
Code:
miles gallons mpg's total miles total gallons avg mpg's 561 32.5 17.26 561 32.5 17.26 597 33.9 17.61 1158 66.4 17.44 311 15.85 19.62 1469 82.25 17.86 503 29.04 17.32 1972 111.32 17.71 1053.7 52.49(2) 20.07 3025.7 163.81 18.47 490.1 26.1 18.78 3515.8 189.91 18.51 375.4 20.66 18.17 3891.2 210.57 18.48 265.7 13.59 19.55 4156.9 224.16 18.54 276 13.59 20.31 4432.9 237.75 18.65 530.6 26.38 20.11 4963.5 264.13 18.79 411.7 20.01 20.57 5375.2 284.14 18.92 623.5 31.69 19.67 5998.7 315.83 18.99 542.9 26.41 20.56 6541.6 342.24 19.11
Registered User
Joined: Feb 2004
Posts: 172
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From: So. Cal.
14,800 on mine, really hard to tell since I keep stickin' stuff on it
. Seems like it's stayed about the same, 10-12 towing, 14-15 city, 17-18 highway. the box i just put on added about 1 mpg because my last tank was 18.8
. Seems like it's stayed about the same, 10-12 towing, 14-15 city, 17-18 highway. the box i just put on added about 1 mpg because my last tank was 18.8
Thread Starter
Registered User
Joined: Jan 2004
Posts: 312
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From: SE NC USA
After reading all the posts it sure is hard to decipher results. Some the same, some better & some worse? If I had to guess it has much to do-w-driving style & local fuel quality. This is considering mods being consistent-w-mileage results
Registered User
Joined: Dec 2003
Posts: 690
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From: michigan
I think lightman said it best !!!
If you keep your foot out of it.Here is what I found on a 600 mile round trip to upper michigan.This is empty mileage figures.Driving at 80 mph mileage was 16.8 to 17.1 mpg.If I backed of to 60-63 mph, my mileage went up allot 18.2 tp 19.6.My truck has about 10,000 miles on it.I love this little honey coobie
coobie
Registered User
Joined: Oct 2003
Posts: 43
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From: Glen Burnie, MD
04' quad 4x4 short bed 3500 SRW 6shooter. (305/555)
100% bone stock.
Only 1 motor oil change so far, and nothing else.
Now I have ~11,500miles.
Most driving is 70%hwy 30%city.
Avg. speed on hwy is about 75mph (b/c it starts to vibe when hitting around 80mph).
I drive hard and fast mostly.
Picked it up early December (winter fuel mix), and got about 16mpg.
Then it went to about 16.5 to 17mpg towards end of winter
Now I get about 18mpg.
Sometimes to 18.5mpg.
Most ever gotten was all hwy drive: 20mpg.
When towing:
I tow about ~9K behind me and get about 12.5mph...but I'm moving avg. about 70mpg when towing.
This is all hand calculated. Computer now has been reading a tad less (like I would get 18.4 and it would say 17.9 or something)
It used to read a tad high during winter months...
Boss
100% bone stock.
Only 1 motor oil change so far, and nothing else.
Now I have ~11,500miles.
Most driving is 70%hwy 30%city.
Avg. speed on hwy is about 75mph (b/c it starts to vibe when hitting around 80mph).
I drive hard and fast mostly.
Picked it up early December (winter fuel mix), and got about 16mpg.
Then it went to about 16.5 to 17mpg towards end of winter
Now I get about 18mpg.
Sometimes to 18.5mpg.
Most ever gotten was all hwy drive: 20mpg.
When towing:
I tow about ~9K behind me and get about 12.5mph...but I'm moving avg. about 70mpg when towing.
This is all hand calculated. Computer now has been reading a tad less (like I would get 18.4 and it would say 17.9 or something)
It used to read a tad high during winter months...
Boss
Registered User
Joined: Jun 2004
Posts: 73
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From: SF, CA
around 15 mpg. around town and highway. 17 to 18 straight highway @ 75 to 80 mph. CA diesel. I got better mileage in Nevada, 19 to 20 straight freeway driving. stock truck. I puy an after market air filter on it and mileage seems tobe a little lower. 40,600 miles 03.
Registered User
Joined: Apr 2003
Posts: 114
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From: sw missouri
This is my second ctd. The first had 32,000 miles and at most .5 mpg. The second I now have just over 30k and again .5 at most. They will definately change sound and start and shutdown easier just like any new engine after break-in. I have had 5 new trucks in the last 7 years and all are little to no change in mpg. I have had numerous people tell me they had a dramatic increase at a certain mileage, usually the 2 mpg jump after 15,000 miles. If I had to bet in las vegas it would be trucks increase less than 5% in fuel mileage.
Registered User
Joined: Jun 2004
Posts: 285
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From: Rockwall, TX
I have not seen any great increase with mine. I got my 04 in November of 03 and averaged 19-21 mpg hand calulated on hwy. I try not to put my foot into it however. I have found that if I keep the RPMs under 2K and boost under 10 psi (empty) I get that mileage. Any more than that and it will drop into the high 17 and 18 range. I have 19,800 miles on the clock.
Thread Starter
Registered User
Joined: Jan 2004
Posts: 312
Likes: 0
From: SE NC USA
bhoeffner - 2X4 truck? You are doing real well mileage wise. I drive the same way-w-an edge ez and va 3.2 and get maybe 18. The boxes were supposed to help?? I saw 20 one time while doing stricktly highway.