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Old 03-04-2008, 11:25 AM   #1 (permalink)
blamkin86
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DIC mileage much more accurate

Fillup #3, hand-calced 13.15 MPG, DIC said 13.2

I simply reset everything at fillup time -- trip odometer, gallons used, etc.

About 70% stop-n-go city driving, 30% one trip at 55mph not many stops. Two hard runs from 40-95.

I'm using the remote start and letting it idle pretty much every time... which I hope to stop doing here shortly. Heck that's probably 1mpg as much as I'm doing it.

Added 4oz of Stanadyne performance this morning, we'll see what happens.

Next thu long trip from Denver -> Lexington -> FtWayne unloaded,
then FtWayne -> Denver loaded at 7.5K 28' trailer.

Anyway Don't you love it when your DIC is right?

Last edited by blamkin86; 03-04-2008 at 11:26 AM.
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Old 03-04-2008, 11:33 AM   #2 (permalink)
Recon sergeant
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What I love is when the DIC is wrong. thinking I am doing well in the fuel dept. only to find out later it was better that what the DIC was showing.
Its like finding a $20 in the washing machine.
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Old 03-04-2008, 12:51 PM   #3 (permalink)
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DIC in both my Vette and Truck seem to be within .1 of hand calculation. I just go by the DIC.
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Old 03-04-2008, 02:14 PM   #4 (permalink)
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The DIC's in stock form are pretty accurate. The only time they are way off is when you deviate from stock, by adding a tuner or larger tires, or some other mods. Other than that, they are accurate. As far as Stanadyne goes, you should be adding 8 oz. per tank full , not 4 oz. You should get a better idling, smoother running truck with Stanadyne.
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Old 03-04-2008, 02:19 PM   #5 (permalink)
blamkin86
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Originally Posted by RI Chevy Silveradoman View Post
As far as Stanadyne goes, you should be adding 8 oz. per tank full , not 4 oz. You should get a better idling, smoother running truck with Stanadyne.
You are correct, I just stopped at the first graduation, which also reads "15gals."

I just put the other 4oz in the tank; may not be optimal but it's in there.

Thanks for the heads up.
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Old 03-04-2008, 02:51 PM   #6 (permalink)
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I don't know why, but mine is spot on ~.1 mpg regardless of whether or not I'm running a tune. Maybe mine's possessed!

I love being able to think with my DIC!!! I'm told I do it too much. I don't get it.
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Old 03-04-2008, 08:19 PM   #7 (permalink)
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I run Hypertech on level 2. When the tune is installed, it constantly reads higher than what I am getting. It is more accurate when I do a straight highway run on a steady speed. But even then it is off, just not as much. For example, during the winter, my DIC reads 19.0-19.5mpg, but hand calculated, I am actually getting 16.5-17.0 mpg. In the summer, on highway, my DIC reads 24.5-25.0 mpg, but I actually get 23.5-24.0 mpg. That is with the tune installed. In stock form, my DIC is pretty much dead on for accuracy.
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Old 03-04-2008, 11:06 PM   #8 (permalink)
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My DIC displays Genesis............but unless it's stroked, you can only read "In the beginning................"
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Old 03-05-2008, 09:21 AM   #9 (permalink)
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Mine seems to be off, reading 2-3 Mpg better and 2-3 gal less than what the pump says. Only have 500 miles so far but thats inline with the old LLY.
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Old 03-05-2008, 09:37 AM   #10 (permalink)
blamkin86
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Yeah that's why I was posting. First two tanks were 1.5MPG high. I'm at 1000 miles and things seem better -- I of course will keep an eye on it. Hopefully it's turning out like others here that say it's quite accurate.
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