First long trip - Chevy and GMC Duramax Diesel Forum
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post #1 of 5 (permalink) Old 04-09-2018, 12:50 PM Thread Starter
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First long trip

I took off Saturday morning around 4 am headed for Anderson Indiana about a 4-5 hr drive for me with stops. Wife and both Goldens in the back seat, when I pulled into the RV dealer I had just over a 1/4 tank and had averaged 22 MPG while running 65-72mph. I averaged 21.5 on the way back with headwind Pretty happy with a big truck doing that. Was not happy Sunday morning waking up to a coolant leak on the upper radiator hose.

2006 SIERRA CC SB 2500HD 6.6 LBZ 179,000 and ticking
3" MBRP Down Pipe
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Edge CTS2
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285/75/16
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post #2 of 5 (permalink) Old 04-09-2018, 02:19 PM
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1st, commenting on the 1/4 tank level, you must be looking to your DIC for mileage, not filling up and hand calculating reality.

2nd, you made the Wife ride in the back seat with the dogs....for over 4hrs?

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post #3 of 5 (permalink) Old 04-09-2018, 04:32 PM
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I can avg 21-22 via my Lie o meter DIC.


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post #4 of 5 (permalink) Old 04-09-2018, 10:49 PM
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Quote:
Originally Posted by HD Dmax Machine View Post
I can avg 21-22 via my Lie o meter DIC.


Mine seems to be fairly accurate but somewhat low. My edge always tells me im getting over 20 on the highway but DIC says 16.5-17 im guessing its somewhere in between there


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post #5 of 5 (permalink) Old 04-10-2018, 04:07 PM Thread Starter
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Quote:
Originally Posted by Hook'em_Horns! View Post
1st, commenting on the 1/4 tank level, you must be looking to your DIC for mileage, not filling up and hand calculating reality.

2nd, you made the Wife ride in the back seat with the dogs....for over 4hrs?
Negative I hand calculate on every tank of fuel. And no the wife rode up front. The LIE O Meter is not your friend. I use an App on my phone and calculate all fuel fillups and repairs along with expenses.

2006 SIERRA CC SB 2500HD 6.6 LBZ 179,000 and ticking
3" MBRP Down Pipe
4" Diamond Cat Back
5" SS tip
Edge CTS2
Intake resonator Plug
EFI LIVE DSP5 by ATP via BBP
AIRDOG2
Interior lighting to BLUE LED conversion
285/75/16
Leveling keys POWERSTOP Brakes.

Last edited by rock4xfab; 04-10-2018 at 04:12 PM.
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