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Old February 25th, 2012, 09:53 PM   #81
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30 MPG...... that's the funniest thing I've seen this week.
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Old February 27th, 2012, 12:18 PM   #82
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Originally Posted by knaffie View Post
30 MPG...... that's the funniest thing I've seen this week.
I hand calculate almost every tank, 30 mpg is no prob unloaded if I keep it under 2,000 rpm. Unfortunately I rarely am without trailer. Been hauling heavy loads all day for two weeks straight now. Worse tank with this type of load was 16. Getting 18-21 mostly through hills of Virginia, Penn, and Ohio.

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Old February 27th, 2012, 12:22 PM   #83
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I just got though a tank that I put magnet parcticals the size of 6 microns and netted 45mpg in my 7.3 ford, so I can see 30mpg without the help of the magnets
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Old February 27th, 2012, 12:41 PM   #84
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Quote:
Originally Posted by Route55 View Post
I hand calculate almost every tank, 30 mpg is no prob unloaded if I keep it under 2,000 rpm. Unfortunately I rarely am without trailer. Been hauling heavy loads all day for two weeks straight now. Worse tank with this type of load was 16. Getting 18-21 mostly through hills of Virginia, Penn, and Ohio.

Sure ya do.
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Old February 27th, 2012, 12:53 PM   #85
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Quote:
Originally Posted by ScOoTeR View Post
Update on new tow rig.

Truck:
2011 GMC Sierra 2500HD
Drive:
4WD
Engine:
6.0L L96 Petrol
Trans:
6 speed auto
Axle ratio:
3.73:1
Tires:
265/70R18
Mods:
None

Best Fuel Economy Empty (6900 lb):
18 mpg


Best Fuel Economy Loaded (13,000 lb combined):
10.4 mpg averaged over 400 mile trip

Load / Driving:
Pop-up truck camper, 6x12 enclosed trailer / cruise control set on 65.


I was hoping to get 10 mpg loaded up, and it came in a little higher - so I am happy. 10 mpg was the "break even" number for a gas engine to equal the equipment premium for a diesel (not including the increased maintenance costs) - figuring 200,000 miles of driving.

I'm happy.
18? Really ? were you going downhill with a tailwind the whole time
are the new trucks really that more efficient than mine ? granted you have 3.73's insted of 4.10s but DAMN
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Old February 27th, 2012, 01:21 PM   #86
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Truck:
2007 GMC Sierra 2500HD Classic ECSB
Drive:
4WD
Engine:
6.6 Duramax LBZ
Trans:
6-Speed Allison
Axle ratio:
3.73:1
Tires:
285/60R18
Mods:
4" Pro-Flow Turbo Back, EFILive Tuning, EGR blockoff, Leveled, Bilstein 5100's.

Best Fuel Economy Empty (7000 lb):
65mph 900 mile road trip - 22 mpg

Average Fuel Economy Empty (7000 lb):
16.8 mpg averaged over the last 4000 Miles of Daily Driving (Winter Fuel)

Best Fuel Economy Loaded (13,000 lb combined):
15.4 mpg, only towed the boat once with this thing (to winter storage)
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Old February 28th, 2012, 11:34 AM   #87
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Quote:
Originally Posted by knaffie View Post
Sure ya do.
Ah, you foiled my plot to lie about my fuel mileage to everyone here, all while hording cummins trucks to sell them post apocolypse at an overinflated price to the non-zombies.

I'm a proffessinal driver who puts over 100,000 miles a year on the road. I specifically drive 12v cummins manual trucks because of their superb mileage and durability. They are one of the most fuel efficient combos ever in a fullsize truck.
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Old February 28th, 2012, 12:59 PM   #88
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Quote:
Originally Posted by Route55 View Post
I specifically drive 12v cummins manual trucks because of their superb mileage and durability. They are one of the most fuel efficient combos ever in a fullsize truck.
I don't think anyone would argue this.

but 16-21 mpg while towing I mean 16 maybe towing the trailer, or one car, but loaded with two cars and a dump truck 30 mpg unloaded

drugs are bad mmkay
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Old February 28th, 2012, 01:02 PM   #89
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Quote:
Originally Posted by kickstand View Post
I don't think anyone would argue this.

but 16-21 mpg while towing I mean 16 maybe towing the trailer, or one car, but loaded with two cars and a dump truck 30 mpg unloaded

drugs are bad mmkay

Well to say how you explaining my 2000 F350 diesel got 14.1 mpg tow GVCR 23K pound. Those were highway for about 200 miles of highway.
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Old February 28th, 2012, 02:51 PM   #90
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Whatever. I don't need to "prove" my numbers to anyone. I'm just thankful for the great mileage my truck gets, as it's helping me run a profitable business. I've never been a "Dodge Guy", but those Cummins engines have sure won me over.
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Old February 28th, 2012, 02:59 PM   #91
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just a hair over 10mpg for the entire trip. About 4500 miles. Roughly 32K lbs.

The CAT 3126 is sure gutless, but I can't complain about the MPG. It ran at WOT for over 50% of the trip.

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Old February 28th, 2012, 03:01 PM   #92
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im sorry keith but i really dont see that truck getting 30mpg. there is no possible way unless its on a hook.
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Old February 28th, 2012, 03:32 PM   #93
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Originally Posted by boggin-machine View Post
im sorry keith but i really dont see that truck getting 30mpg. there is no possible way unless its on a hook.
If you say so.
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Old February 28th, 2012, 03:59 PM   #94
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Quote:
Originally Posted by ScOoTeR View Post
Update on new tow rig.

Truck:
2011 GMC Sierra 2500HD
Drive:
4WD
Engine:
6.0L L96 Petrol
Trans:
6 speed auto
Axle ratio:
3.73:1
Tires:
265/70R18
Mods:
None

Best Fuel Economy Empty (6900 lb):
18 mpg

Best Fuel Economy Loaded (13,000 lb combined):
10.4 mpg averaged over 400 mile trip

Load / Driving:
Pop-up truck camper, 6x12 enclosed trailer / cruise control set on 65.


I was hoping to get 10 mpg loaded up, and it came in a little higher - so I am happy. 10 mpg was the "break even" number for a gas engine to equal the equipment premium for a diesel (not including the increased maintenance costs) - figuring 200,000 miles of driving.

I'm happy.
I picked up a pool vehicle for my trip to Kentucky today. It's a 2012 Chevy 2500HD 6.0L Crew Cab LTZ. Perfect for business trips.

From Warren to Elizabethtown, KY I averaged about 16.4 at 70 MPH.
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Old February 28th, 2012, 04:39 PM   #95
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16.4 is pretty damn decent out of a 6.0. COmapred to the average diesel (not route55's super diesel) at 18-20, it takes a lot of miles to cover the cost of that diesel truck, and the 6.0's tow as good (probably better) as a 10 year old diesel that's for sure.
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Old February 28th, 2012, 04:52 PM   #96
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Quote:
Originally Posted by knaffie View Post
30 MPG...... that's the funniest thing I've seen this week.
http://www.dieselpowermag.com/tech/g...ins/index.html


http://www.dieselpowermag.com/featur...ins/index.html

Last edited by GearDrive; February 28th, 2012 at 04:57 PM.
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Old February 28th, 2012, 05:12 PM   #97
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Quote:
Originally Posted by kickstand View Post
16.4 is pretty damn decent out of a 6.0. COmapred to the average diesel (not route55's super diesel) at 18-20, it takes a lot of miles to cover the cost of that diesel truck, and the 6.0's tow as good (probably better) as a 10 year old diesel that's for sure.
I'm just used to seeing the 21-22 we get out of my wife's 2011 Tahoe. Since the interior is identical, I was fooled.

It would be interesting to see what it would get on flat land. It's not exactly flat once you get past Cincinatti.
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Old February 28th, 2012, 06:52 PM   #98
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And both those trucks are automatics! I love how some of these guys don't know me from jack but have no problem calling me a liar. Makes me feel all warm and fuzzy inside.

I have no reason to fudge the numbers, I've posted all my tow rigs in this thread, the good and the bad.
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Old February 28th, 2012, 06:59 PM   #99
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I've known Keith for many years. I'd be willing to bet he can verify his numbers. In fact, I'd be willing to throw up a hundy for someone to do a trip with him and prove him wrong.
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Old February 28th, 2012, 07:10 PM   #100
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oh, my bad, I didn't realize keith's was driving around with his mirrors folded in, wipers taped down, wheels modified to decrease aero dynamics, etc.....


I've read that same article, I find it hard to believe you would be able to consistently pull those numbers, but clearly they aren't pulling them with a set up you would be daily driving either.....

I got 35 mpg out of my powerstroke with out having to do any of those mods, of course I drove downhill for an hour....does that make it count?
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