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Old 09-19-2011, 07:40 PM   #169
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Friends: My local Chevy dealer has two new nearly identical ’11 Silverados, both in LTZ trim level, both black. The first has the 6.0 V-8 for $45,900. The second has the Duramax/Allison for $50,800. I was surprised that there’s just $4,900 separating the two. That’s a sizeable amount but less than conventional wisdom has it.
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Old 09-19-2011, 08:07 PM   #170
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That was our experience also...and I am quite sure that difference could be negotiated further...When we came down to final $ for our DA...there was ~$1800 difference between diesel and 8.1l (no longer available) gasser.
The "huge" cost difference some Folks like to talk about is another "deezul myth" from Folks that haven't "been there/done that".
Kind of like the "increased cost of maintanence"...that one always leaves me puzzled...

Timemachine, yeah the trip was awesome; RMNP, Tetons, Cody, Badlands, Custer, MT Rushmore...we had a ball...then returned home to a hurricane, and spent another week living in the camper!

Bill
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Old 09-19-2011, 08:19 PM   #171
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Love our 08 d-max 6.6. Pulls our 30-footer fully loaded without a bit of pain, big improvement over the gasser.
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Old 10-12-2011, 09:06 PM   #172
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Love my Duramax - will love it more . . .

Love my Duramax. Will love it more when the engine is replaced. Although that seems ominous this note is to pass along our recent experience.

Last week as we were leaving a great weekend on Skyline Drive the engine shuddered and quit.

The blow-by-blow is too long but in summary we bought our '06 Chevy in January 2010 with 57,000 miles on it. Last week we just turned 70,000. Since early in the year the dealer had been chasing a low oil pressure warning. Lots of trips to the shop where we were unable to duplicate the problem. Techs called GM Tech Central and were told that they had never seen a problem like this before. We were, of course, very interested in whether this was a warning problem or an oil pressure problem. Electrical? or oil pickup? Console? or pressure relief valve? All involved were baffled - a great reason to check the oil quantity before moving the vehicle - always! A little rpm always corrected the problem as I hovered over killing the engine if the pressure didn't recover.

We learned yesterday that we answered the question - false warning? Low oil pressure? After pulling the pan - which required pulling the engine - sheesh! - it was found that the crankshaft was cracked. Crankshaft cracked? Huh? Those hummers are bulletproof - except when they don't have oil.

We are now about to learn whether GM will honor the extended warrantee that I uncharacteristically bought.

On another note, I rented a 3/4 ton gasser to bring the trailer home. I'll sure love my Duramax with its new engine.
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Old 10-12-2011, 09:25 PM   #173
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As I posted earlier, the 2006 Dura seems like a bad kitty. Good luck.
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Old 10-13-2011, 03:01 PM   #174
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Very sorry to hear it, gsmithii, and I hope the resolution is quick and in your favor.
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Old 10-17-2011, 07:33 AM   #175
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I Wish GM Would Produce This!

For all the folks who are fond of the Duramax and Allison combination I've created a thread for the DuraBurb. DuraBurb is a combination of Suburban (Yukon XL) along with a truck engine and drivetrain. I only wish I had an extra $50k or so - I'd buy one!

Maybe the DuraBurb and other customized, one-off rigs will gain some attention at GM and the factory will start producing a product like this. Until then, the DuraBurb looks like a good way to combine the beloved engine/tranny with the ever-popular Suburban.

Check it out on this thread.

Lucius
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Old 10-17-2011, 09:52 PM   #176
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Questions about duramax

I am still weighing if this engine is worth the cost.If I towed a lot it would but occasionlly I don't know. Two questions that may have been addressed. Do the new engines have to use def fluid. When you first start one do they smoke until they warm up. This will become a difficult decision for me.
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Old 10-17-2011, 10:57 PM   #177
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I am still weighing if this engine is worth the cost.If I towed a lot it would but occasionlly I don't know. Two questions that may have been addressed. Do the new engines have to use def fluid. When you first start one do they smoke until they warm up. This will become a difficult decision for me.
2011 on use DEF; I'm pretty sure that the 2010 was the last non-DEF year. I'm not sure about the smoking while warming up because I don't own one, but I would be shocked if they do.
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Old 10-18-2011, 10:29 AM   #178
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Chevy/GMC Duramax

Hi:

We own a 2011 GMC Sierra Denali 3500HD SRW crew cab 4x4 and there is no smoke at start-up or operation. That's one of the bummers about these vehicles that use SCR (catalytic converters) today, the exhaust does not even smell like a diesel. After owning three Mercedes diesels from the 1970's to 1980's, I loved that smell!

As for Diesel Exhaust Fluid, the GM trucks carry around five gallons of DEF fluid. O'Reilly auto parts carries 2.5 gallons of the DEF for $12. GM's DEF is about $12 a gallon. As for use, hard to tell for "normal" driving because we mostly use the truck for towing our 04 30 ft. Classic (about 8,000 lbs. ready to go) and we get 13-14 towing up to OR and WA from Sacramento area to visit our son in Redmond, WA. With the trailer we get about 1,000 miles to gallon of DEF, probably more if we weren't towing so much. When is Seattle we went through a half tank of diesel, not towing, and got exactly 20 MPG.

Power and control is the big thing with this truck. Going up I-5 it rarely shifts out of sixth gear down into fifth. There were a few spots when it went into fourth but still better than our 02 GMC Yukon XL with the 8.1 and 4.10 rear end that frequently dropped down into third and screamed at 4,000 rpm. The mpg on those trips was never over 8 for an average.

Downhill with this truck is also great with the quiet exhaust brake. Just set the cruise at 60 and relax.
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Old 12-28-2011, 08:17 PM   #179
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Kinda long but interesting.
Chevy Silverado HD2HD | Pickup Truck Comparison | Chevrolet.com
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Old 12-28-2011, 10:20 PM   #180
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We have a 2011 Silverado 3500 Duramax which uses the DEF. Wal-Mart is now carrying the 2.5 gallon bottle of Peak brand DEF for $11.50. We have bought it several times at different Wal-Marts all over the country.

Brian
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Old 12-29-2011, 07:52 AM   #181
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That was interesting...the payload tests show some real differences in chassis engineering. No wonder the GM capacity numbers are up for the new design.

Really, you can't go wrong with any of the new HD trucks...although if looking at Ford...I would wait a few years for the new drive train to be proven.
GM, and of course, Cummins are well tested at this point.

If you need to be the first up the hill...buy a GM!

Happy New Year!

Bill
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Old 12-29-2011, 10:54 AM   #182
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15,000 Mile Reprt

Fred, the truck, is our 2011 Chevrolet Silverado 3500 Duramax 4x4. Fred is a crew cab long bed with single rear wheels.

We took delivery of Fred on August 5th of this year. Fred is our first diesel tow vehicle. Before Fred, we always pulled Lucy with 3/4 ton Suburbans. We bought Fred so that we would be able to carry our new Outfitter truck camper and tow the Airstream at the same time.

We now have a little over 15,000 miles on the new truck. We couldn't be more pleased with Fred's capabilities and road manners. We haven't weighed the truck camper yet, but are estimating that we are somewhere around 2200# ready to camp. Lucy weighs in at 7400# with an 850# tongue weight.

After 15,000 miles, most of it towing Lucy with the truck camper on board, we are convinced that we got the right vehicle for the job. Fred rarely has to down shift on an upgrade at highway speeds. He just reaches down into his bag of torque and continues on. Fred's engine braking system handles the down hill duties with confidence. We no longer experience any of the runaway train feelings that we would sometimes get towing the Airstream down hill with the Suburbans.

Fred's road handling capabilities are excellent, both on the highway solo or towing, and off road in the back country with the truck camper.

Brian
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