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09-10-2014, 06:31 PM
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#1
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Senior Member
Join Date: Aug 2014
Posts: 237
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Gas or diesel
I have decided that the F150 I have is just not going to cut it with the trailer I have. Have an opportunity to get a pretty good deal on some 2015 350 Super Duty trucks coming available in a couple of weeks with very low mileage on them. Some are 6.7 diesel and some are 6.2 gas. Are there any here who have the 6.2 gas in a 350 Super Duty and how are the real numbers for mileage and power. I realize the diesel is going to have a lot more power however the price different is about $10,000 and the cost to service, repair will be less as well.
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09-10-2014, 06:37 PM
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#2
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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that's a huge price difference for used. It isn't that much of a gap for new. As far as repair cost, everything is expensive these days. Keep in mind, that diesel has a life span 2-3 times as long, so of course you will spend more over time. You will get at least 50% better fuel economy with the diesel, and twice the torque for pulling.
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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09-10-2014, 06:51 PM
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#3
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Senior Member
Join Date: Jan 2011
Posts: 2,106
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Quote:
Originally Posted by davel1971
You will get at least 50% better fuel economy with the diesel,
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Certainly not my experience. I didn't see any improved fuel mileage going from gas to diesel. I do agree that you get more power, but depending on the load, a gasser may provide sufficient power.
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Terry/Bernadette Lily the Yorkie 2019 Dodge Ram Sport 1500 2019 FR Vibe 28RL
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09-10-2014, 06:55 PM
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#4
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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I went from 7 to 12 MPG and that was with upgrading to 4000lb heavier trailer at same time
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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09-10-2014, 06:57 PM
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#5
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Senior Member
Join Date: Jan 2011
Posts: 2,106
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Quote:
Originally Posted by davel1971
I went from 7 to 12 MPG and that was with upgrading to 4000lb heavier trailer at same time
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That's amazing. Wish I could say the same.
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Terry/Bernadette Lily the Yorkie 2019 Dodge Ram Sport 1500 2019 FR Vibe 28RL
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09-10-2014, 07:01 PM
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#6
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Senior Member
Join Date: Jul 2013
Location: Oregon
Posts: 716
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Quote:
Originally Posted by davel1971
Keep in mind, that diesel has a life span 2-3 times as long,
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I Don't drink this Kool-Aid myself...especially with all the emissions crap the manufacturers are required to put on diesels these days. Modern gas engines are extremely reliable.
As to price, when I bought my 04 Duramax truck in 07, a diesel engine added $6000 to a used vehicle (all else equal) but only $5000 for new trucks. A diesel on a new truck is now about 8-9k, so I would believe $10 for used late model....It's supply and demand at it's finest.
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'04 GMC Sierra 2500HD, CCSB, D/A, MaxBrake, B&W Companion, Retrax Pro, AR Power Steps
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1969 Camaro RS/SS Convertible
Dad's old 1968 Empi Imp (recently recovered from under 21 years worth of boxes/dust)
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09-10-2014, 07:07 PM
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#7
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Senior Member
Join Date: Dec 2012
Posts: 167
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It all depends on how much you will be towing the trailer. Full timers tow more than vacation campers. Will the savings in fuel offset the $10,000.00 for the diesel? Check the towing guide for the gas truck. It needs to be 20% more than the trailers max weight.
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2013 Sanibel 3600 5th, 2007Dodge 2500 Cummins Turbo Diesel, 2WD, 4.10gears, Banks equipped, 18" factory rims
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09-10-2014, 07:09 PM
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#8
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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I just built a truck on Chevy site. $8000 upgrade for Duramax/Allison upgrade. At 200,000 miles, a diesel will be worth almost that much more than a comparable gas truck. Resale value will always be better.
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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09-10-2014, 07:12 PM
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#9
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Senior Member
Join Date: Jul 2014
Location: Mount Vernon, Ohio
Posts: 179
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You didn't say what you are pulling..so its hard to say. How much will the truck be used other than as a TV?
I just upgraded from a F150 5.0L and pulling a 7000# straight pull, to a 2013 F250 6.7 and a 9000# FW. The 6.7 is flat out awesome. The F150 would get about 18mpg regular driving.....about 9.5 pulling. The 6.7 gets 11.7 pulling a bigger trailer.....and 19.5 general driving.
Plus' and minus's to both. Get what makes you feel good!
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09-10-2014, 07:16 PM
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#10
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Senior Member
Join Date: Aug 2014
Posts: 237
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Quote:
Originally Posted by mikkeeh
You didn't say what you are pulling..so its hard to say. How much will the truck be used other than as a TV?
I just upgraded from a F150 5.0L and pulling a 7000# straight pull, to a 2013 F250 6.7 and a 9000# FW. The 6.7 is flat out awesome. The F150 would get about 18mpg regular driving.....about 9.5 pulling. The 6.7 gets 11.7 pulling a bigger trailer.....and 19.5 general driving.
Plus' and minus's to both. Get what makes you feel good!
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I just realized that I forgot to add the trailer. It's a 3008 windjammer 7220 dry so in the 8500 to 9000 lb plus other stuff in the box. Yes it would be used for daily driver as well in Alberta.
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09-10-2014, 07:20 PM
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#11
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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Quote:
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Plus' and minus's to both. Get what makes you feel good!
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Best advice yet.
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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09-10-2014, 07:20 PM
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#12
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Senior Member
Join Date: Jun 2012
Posts: 10,907
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Quote:
Quote:
Originally Posted by davel1971 
Keep in mind, that diesel has a life span 2-3 times as long,
I Don't drink this Kool-Aid myself...
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I'm with you. I've never gotten rid of a vehicle because the engine was so bad I had to dump the vehicle. It's usually something else wearing out that makes you decide it's just not worth it. In my case, it's been transmissions, suspensions, etc.
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1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
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2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
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09-10-2014, 07:21 PM
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#13
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Senior Member
Join Date: Jan 2011
Posts: 2,106
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Quote:
Originally Posted by Carrier
I just realized that I forgot to add the trailer. It's a 3008 windjammer 7220 dry so in the 8500 to 9000 lb plus other stuff in the box. Yes it would be used for daily driver as well in Alberta.
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Oh, you didn't say you were from Alberta. In that case you must buy the biggest, baddest truck you can get. 
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Terry/Bernadette Lily the Yorkie 2019 Dodge Ram Sport 1500 2019 FR Vibe 28RL
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09-10-2014, 07:26 PM
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#14
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Senior Member
Join Date: Aug 2014
Posts: 237
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Quote:
Originally Posted by Rugged Brown
Oh, you didn't say you were from Alberta. In that case you must buy the biggest, baddest truck you can get. |
Oh I hear what you're saying. 
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09-10-2014, 07:27 PM
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#15
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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Quote:
Originally Posted by rockfordroo
I'm with you. I've never gotten rid of a vehicle because the engine was so bad I had to dump the vehicle. It's usually something else wearing out that makes you decide it's just not worth it. In my case, it's been transmissions, suspensions, etc.
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I never said the diesel upgrade would make the transmission and ball joints last 3 times as long. Of course those things will wear out eventually, but the life of the engine definitely has more potential than a gas
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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09-10-2014, 07:50 PM
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#16
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Senior Member
Join Date: Oct 2013
Posts: 592
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Quote:
Originally Posted by davel1971
I went from 7 to 12 MPG and that was with upgrading to 4000lb heavier trailer at same time
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X2 on the MPG increase. Not much of a difference when empty but a big difference when towing.
Sent from a high tech gadget
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09-10-2014, 08:17 PM
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#17
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Unfortunately or luckily I drive my tv every day so the fuel savings from a gas to a diesel is WAY worth it.
2005 6.0L gas towing 8-9-10 mpg
2005 6.0L gas not towing 11-12 mpg winter and 12-14 mpg summer.
2008 6.6 duramax diesel towing 10-12 mg
2008 6.6 duramax diesel not towing winter 14-15 mpg and 18-19 mpg summer.
TURBS
"SABRE OWNERS UNITED"
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09-10-2014, 08:25 PM
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#18
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Senior Member
Join Date: Aug 2014
Posts: 496
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Quote:
Originally Posted by Rugged Brown
That's amazing. Wish I could say the same.
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You have a 6.4 PSD. that has the worst mileage of any new diesel out there. That is one of the reasons Ford opted for a new design amungst others. If you got a tuner and deleted, your milage would go up quite a bit.
My buddy and I share a race car and we both have tow vehicles. He has a 3500 chevy with a gasser and max tow package on it and gets maybe 6mpg and we can only go 62-64mph in that pig with the tranny hunting all over... I have a 2014 chevy 2500 Duramax and get almost 12 towing at 72mph on cruise and it never shifts out of 6th.
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Doc
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2014 V-Cross Platinum 365VTSB (Bought Labor Day 2014)
TV: 2016 GMC 3500 Denali - Motor Ops Tuned
Days Camped 2016: 28
Days Camped 2017: 25 so far
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09-10-2014, 09:40 PM
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#19
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Senior Member
Join Date: Oct 2013
Location: Bolckow
Posts: 140
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I had the 6.2 F350 and it would pass everything but a gas station about 6 to 7 MPG pulling a 36' fifth wheel
Happy Camping Oak
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1 Surveyor
2015 Silverado Duramax w/Allison transmission
2014 surveyor 293RL fifth wheel
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09-10-2014, 09:52 PM
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#20
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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Quote:
Originally Posted by Rugged Brown
That's amazing. Wish I could say the same.
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As I understand it the 2010 SD F250 and others were the last year with a five speed auto.
2011's came out with a six speed and better mileage, along with alloy heads to shave off a few pounds.
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2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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