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  #31  
Old 09-23-2017, 09:24 AM
powerbob powerbob is offline
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I just bought a new 6L gas . With rebates and 0% it was 18k less than a duramax. I crunched the numbers and that worked out to almost 200 tanks of gas . For as much as I drive the gasser will be a lot cheaper . + lower fuel cost . Lower cost maint ect
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  #32  
Old 09-23-2017, 10:38 AM
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Weight of truck, rear gear ratio, tires, and trany have a big impact on fuel economy. Don't think a 6.2L would improve the fuel economy all that much for the 3/4 or 1 tons. Much like the minimal difference between the 5.3 and 6.2L in the 1/2 tons. One would think moving to one common engine would be benifical. Another thing to consider is I believe that the 6.2L recommendeds 91 octane so that works against it.
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  #33  
Old 09-23-2017, 11:49 AM
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I'm on my third 6.0L. 2007, 2008 and currently a 2014. All of them have been 2500s and 4:10 ratio. Consumption rate has been pretty standard across all three. 20-22L/100km as an average. City, highway and putzing around on the back roads. Not great on fuel but I like them. The worst mileage I ever saw was purely my own fault for even hooking on but the truck was full to the tits upon departure and my fuel light came on after I drove 192km.
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  #34  
Old 09-23-2017, 12:33 PM
Headdamage Headdamage is offline
 
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This thread is making me feel better about my 14L/100km 2006 2500HD diesel.
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  #35  
Old 09-23-2017, 02:56 PM
Rdamours Rdamours is offline
 
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I believe with the 6 litre on 2017/18 its the 8 speed transmission that should help out with the fuel mileage for that gearing.
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  #36  
Old 09-23-2017, 04:48 PM
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For comparison we have a 2wd 2015 full cab long box f250 with 6.2l gas. We average 23l per 100k. More often than not.... we are towing a 20' 7ton trailer that probably weighs on the ballpark of 5000lbs average between empty and loaded. we have 3.73 gears I think. Not the 4.33
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  #37  
Old 09-23-2017, 04:56 PM
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Quote:
Originally Posted by powerbob View Post
I just bought a new 6L gas . With rebates and 0% it was 18k less than a duramax. I crunched the numbers and that worked out to almost 200 tanks of gas . For as much as I drive the gasser will be a lot cheaper . + lower fuel cost . Lower cost maint ect
In ten years the gas jobber will be worth $7-10k and the diesel will be $30k. Don't forget the long game.
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  #38  
Old 09-23-2017, 08:47 PM
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Quote:
Originally Posted by Coiloil37 View Post
In ten years the gas jobber will be worth $7-10k and the diesel will be $30k. Don't forget the long game.
But you will also have paid an extra $10 -15k in diesel services you don't have to worry about on a gasser.
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  #39  
Old 09-23-2017, 10:14 PM
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Quote:
Originally Posted by Pilsner Man View Post
But you will also have paid an extra $10 -15k in diesel services you don't have to worry about on a gasser.
Maybe. I've had mine for 7 years and haven't done anything to it except the usual oil and filters. I did them all myself from new so an oil change cost me about $50. I do my own valve sets, although they're not really "diesel specific" and I doubt many guys have them done on their gas or diesel engines like they should.
Because I like to take care of my junk I've got my fuel filtered to 2 microns and 99% of the water. My oil has bypass filtration to 2 microns as well. I run Donaldson filters, monitor everything and make sure I do the usual maintenance on time as required (brake fluid, transmission, transfer case, power steering, coolant, grease, etc) but again all vehicles need these things.
The thing that kills diesels is improperly filtered fuel and air. Get dirty fuel and don't have it filtered properly and you'll take out your lift pump and injectors. Run a k&n air filter and dust your engine, you can kiss it goodbye.

Back in the old days before my emissions crap fell off I had to clean the egr every 80k km or so. That cost about $30 on the egr cleaning solution and took a couple hours to soak it. Or a guy could take it to the shop and they would of done it for about $300. There was also a ccv filter that had to be changed around 80 or 90k km and cost about $120. Those are specific to which diesel your running though and can be removed when deleted.

I'm not sure what additional maintenance a diesel requires that's going to cost $1500 a year over a gasser... do you?
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  #40  
Old 09-24-2017, 06:41 AM
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[QUOTE=Coiloil37;3628393
I'm not sure what additional maintenance a diesel requires that's going to cost $1500 a year over a gasser... do you?[/QUOTE]

I guess I put on more miles than most people a year so I might have over estimated. I do about 75000km a year.

But an oil change with good synthetic oil is 100$ more a chang on a diesel. I don't know how you can do a diesel oil change for 50.$ Just oil alone using good oil is a bunch more than 50$. Add a filter for most guys that don't have bypass filtration. 5 oil changes a year is 500$ Extra.

Add a egr or CCv job at the shop each year and there is a $1000.

I've also heard you can't delete the 2017 duramax's plus you run into potential warranty issues by doing so.
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  #41  
Old 09-24-2017, 06:59 AM
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Quote:
Originally Posted by Rdamours View Post
I believe with the 6 litre on 2017/18 its the 8 speed transmission that should help out with the fuel mileage for that gearing.
Still stuck with the 6 speed. 8 speed only available on 1500.
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  #42  
Old 09-24-2017, 07:12 AM
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Quote:
Originally Posted by Pilsner Man View Post
I guess I put on more miles than most people a year so I might have over estimated. I do about 75000km a year.



But an oil change with good synthetic oil is 100$ more a chang on a diesel. I don't know how you can do a diesel oil change for 50.$ Just oil alone using good oil is a bunch more than 50$. Add a filter for most guys that don't have bypass filtration. 5 oil changes a year is 500$ Extra.



Add a egr or CCv job at the shop each year and there is a $1000.



I've also heard you can't delete the 2017 duramax's plus you run into potential warranty issues by doing so.


I get away with affordable oil changes because I watch Kijiji for sealed buckets of rotella, delvac or delo oil and buy it when I see it for max $45 a bucket. You can buy this Donaldson filter which is the best full flow filter available for my Cummins for $17 down at finning or the kenworth truck shop.




Anyway, I don't want to derail this thread any worse then I have. We can argue diesel vs gas somewhere else, I'm out.
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  #43  
Old 09-24-2017, 07:13 AM
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I think if a person is running a rig, towing a lot, towing heavy loads, running excessive miles, etc. a diesel is certainly the way the go and likely worth the additional investment. Bro-in-law as an example is towing a 5th wheel, SxS cargo trailer, a 24ft flat deck trailer with a water container to fill his cistern, and the same trailer for work on occasion to haul materials around. He's towing something almost every week. A HD diesel for a scenario like that is no question worth it. For the guy towing his 5th wheel/boat once a month from May till Sept and using it as daily runner for the remainder, the $10k adder plus the additional maintenance cost... in my opinion not so much.

I am curious to see what Ford and GM are coming up with for diesels for their 1/2 tons in 2018/2019 respectively. GM’s 2.8L diesel in the Canyon/Colorado is supposed to be fantastic but it’s still a ~$4k adder. Not sure what the maintenance costs are like.

Quote:
Originally Posted by Rdamours View Post
I believe with the 6 litre on 2017/18 its the 8 speed transmission that should help out with the fuel mileage for that gearing.
One would think the 8sp would provide better fuel mileage but on the GM 1/2 tons the 8sp actual achieves slightly less mileage than the 6sp by about ~0.5L/100km. Same configuration (engine/axle). Go figure.
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  #44  
Old 09-24-2017, 07:38 AM
-JR- -JR- is offline
 
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Quote:
Originally Posted by Coiloil37 View Post
In ten years the gas jobber will be worth $7-10k and the diesel will be $30k. Don't forget the long game.
If I could only find a 10 year old HD3500 8 ft box for $10,000. with under 200,000 km I would buy it . Just non out there !
.
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