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6.2L vs 6.7L

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Old 08-15-2014, 11:16 AM
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Lightbulb 6.2L vs 6.7L





I am looking at a 2015 F-350, 6.2L, Crewcab, 4x4, 8 foot bed, 4.30 gears, 20" tires, SRW. I had a 2004 diesel and 2006 diesel and was very disappointed with being in the warranty shop so much of the time which is why I am thinking about a gas engine. I never had warranty issues with gas engines in trucks. According to Ford (above photo)... The 6.2L gas 4.30 gears can pull 15,000# versus 6.7L diesel 3.55 gears can pull 15,900#. I am diesel engine scared. I don't want another headache truck. What is the advantage of spending $8,000 more for a diesel engine and higher fuel prices at the fuel pump for diesel if they both can pull almost the same amount of weight? Does the diesel and gas engines come with the same basic transmission torque convertor? I pull a 15,000# fifth wheel once a year from Denver, CO to Los Angeles, CA for Winter and Los Angeles, CA to Denver, Co for Summer. Rest of the year the truck is used for normal driving. Also, I want to next truck to last me 10 years (I hope!).

If you were in my situation, which engine would you buy?
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Old 08-15-2014, 11:45 AM
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The 6.2, and it sounds like you already made up your mind. OR, you could bulletproof your '06 diesel if you still have it and it will last another 10 years easy.
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Old 08-15-2014, 12:03 PM
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The 6.2, and it sounds like you already made up your mind. OR, you could bulletproof your '06 diesel if you still have it and it will last another 10 years easy.
'06 is gone! Thank God!

What worries me are the two long trips per year pulling the fifth wheel. Can the 6.2L handle it in the long term?

Will a 2015 F-350, 6.2L, Crewcab, 4x4, 8 foot bed, 4.30 gears, 20" tires, SRW get fuel mileage above 12 MPG non-towing?
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Old 08-15-2014, 03:22 PM
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I just picked up a 2015 (see my sig) for the similar reasons. My truck will be a daily driver and I could not justify the upcharge and high maintenance/operating cost. There are a bunch of threads on here on this subject. I have not pulled with mine yet but the is a member on here called rv puller, you might pm him. Good Luck
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Old 08-15-2014, 03:49 PM
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I just picked up a 2015 (see my sig) for the similar reasons. My truck will be a daily driver and I could not justify the upcharge and high maintenance/operating cost. There are a bunch of threads on here on this subject. I have not pulled with mine yet but the is a member on here called rv puller, you might pm him. Good Luck
I am thinking Got a 6.2L V8 Super Duty - 5 Star Tuning might resolve any concerns I have with towing the fifth wheel. What's your thoughts?
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Old 08-15-2014, 03:52 PM
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Yep
I have read good things about 5 star but I am going to get a few miles on mine first.
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Old 08-15-2014, 05:11 PM
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Quote:
Originally Posted by weluv View Post

'06 is gone! Thank God!

What worries me are the two long trips per year pulling the fifth wheel. Can the 6.2L handle it in the long term?

Will a 2015 F-350, 6.2L, Crewcab, 4x4, 8 foot bed, 4.30 gears, 20" tires, SRW get fuel mileage above 12 MPG non-towing?
Will a 6.2 pull on long trips, I can say no problem it's what we use ours for. Our first 10K had 7K pulling our 16K 5ver put west and down south. And a 4.30 gear truck will make well over 12mpg empty, ours makes that in town.

Denny
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Old 08-15-2014, 09:57 PM
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In March of 2013, I went from a '06 F250 CC with the 6.0 PSD with a 3.73 limited slip rear end to a '13 F350 CC Dually with the 6.2L Gas and 4.30 limited slip rear end which has just over 22k on the clock now. To date the 6.2L has performed flawlessly. It has plenty of power to tow my 34' 14k lb gooseneck horse trailer. The message center tracks the miles that you have a trailer plugged in, and to date I've pulled the above trailer 38% of the miles on the truck - I usually pull at the posted speed limits. I hand calculate the mpg and have accumulated it since day 1 - overall average is 11mpg, empty is in the 13 to 13.5 mpg, towing is in the 8 - 9 mpg. On a 150 mile interstate trip at 60 mph, I averaged 16 mpg, on the return trip the same day at 65mph, I averaged 15mpg - so speed has a great effect on the mpg, especially with the 4.30 gears. The F250 6.0 PSD with the same trailer averaged 12.5 over the 101000 miles I owed it. So I'm very satisfied with the gas engine and don't regret not getting a diesel again - just too many issues with them. Based on how I use this truck, I calculated it was going to take me over 150k miles just to breakeven on extra cost of operating the diesel and the initial cost vs the operating costs of the gas engine, assuming no major maintenance issues with either engine. I would not worry about the ability of the 6.2 gas to tow your trailer - but you will have to learn to drive it a little different as you have to keep the gas engine in it's power band at higher rpm's than a diesel - plus the 6 speed transmission is a great improvement over the 5 speed I had with the 6.0 diesel - good luck.
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Old 08-16-2014, 06:15 AM
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I have ridden in some 6.2L with the 4.30 gears with heaving towing. They perform just fine.

Your only issue will be the Rockies. Coming back to Denver through Eisenhower tunnel. But not to fear, 4-5K rpms won't hurt it.

For your purpose it is the perfect motor.

If you were towing more often then maybe rethink it.
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Old 08-16-2014, 08:57 AM
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Thanks for the responses!

After hearing a gentleman talk about his Company he works for that switched the diesel trucks pulling heavy loads to gas trucks pulling heavy loads. Heavy loads weighing 16,000 - 18,000 lbs. The Company lowered their initial cost and overall downtime of the diesel trucks being in repair shop. I suddenly became interested in what he was saying. I then researched to see if Ford's brochure said gas engine could pull approximately the same weight. The answer is "YES!". Ford says the transmission is the same. I would guess the torque converter is the same. I am trying to find the negative issues of owning a gas truck. Now, after reading the comments here of real life experiences... I am convinced the gas engine is a better option for my situation. It has been a long time since I owned a gas truck. I will have to learn how to pull the fifth wheel up and down steep grades at high RPM. Thanks guys for reconfirming my thoughts.
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Old 08-16-2014, 09:16 AM
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Manual shifting is your friend on the 6.2.
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Old 08-17-2014, 06:59 PM
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I have a 6.2 4:30 rear end F250 srw and love it.

Simple and inexpensive to maintain.

Tows my 90000lb rig with absolutely no problem.

I have read many posts of guys towing a lot more lbs in the mountains with no issue, but like others have said, get use to the high rpms.

I have had the truck since April 2013 and I have never had down time.

Good luck with your decision!
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Old 08-18-2014, 10:22 PM
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In so many ways I want, and in so many ways the 6.2 gasser matches my personal situation. But, & it's a huge but, I just came to the realization during a 2-week camping trip in our 5ver that the 6.2 is not near enough power & torque for what I tow & more specifically, where I tow.

Numerous times during our drive, like towing over Donner Pass (In both directions) I realized there's no way I'd be happy with the 6.2. My turbo diesel was working hard at numerous times, I mean working hard, & it has more power than the current 6.2. I was in 3rd gear chugging at times, in a gasser I'd be redlined out, in 2nd or maybe even 1st gear, & rolling probably 25-35mph cresting hills like that... Unacceptable.

I'm really bummed out, but the fact is (for me) that towing what I tow, in heat, on long long grades, and at high elevation means a turbo diesel is the only tool for the job. Not looking forward to the added expense & hassle (DEF etc) of another diesel but as they say 'it is what it is'.
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Old 08-19-2014, 06:14 AM
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Originally Posted by rblomquist View Post
In so many ways I want, and in so many ways the 6.2 gasser matches my personal situation. But, & it's a huge but, I just came to the realization during a 2-week camping trip in our 5ver that the 6.2 is not near enough power & torque for what I tow & more specifically, where I tow.

Numerous times during our drive, like towing over Donner Pass (In both directions) I realized there's no way I'd be happy with the 6.2. My turbo diesel was working hard at numerous times, I mean working hard, & it has more power than the current 6.2. I was in 3rd gear chugging at times, in a gasser I'd be redlined out, in 2nd or maybe even 1st gear, & rolling probably 25-35mph cresting hills like that... Unacceptable.

I'm really bummed out, but the fact is (for me) that towing what I tow, in heat, on long long grades, and at high elevation means a turbo diesel is the only tool for the job. Not looking forward to the added expense & hassle (DEF etc) of another diesel but as they say 'it is what it is'.
DEF is not that big of a deal. I go thru 5 gallons every 5K mile. Check the prices of the blue def at walmart and trucks stops for a feel of the added cost.
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Old 08-19-2014, 07:52 AM
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My experience between the 6.2/6.7 is that the 6.2 works for guys that tow occasionally but don't drive the truck on a regular basis. I had a 2012 F250/6.2 and it would struggle to get 11-13 mpg empty, mixed driving conditions. It would get 7-10 mpg towing depending on what size of load. I did many calculations before moving up to the F350/6.7, trying to figure out what was the most cost effective vehicle to drive. The 6.7 has proven to be the answer for me. It gets 17-20 mpg in mixed driving conditions, 12-15 towing the loads I've hooked to it. The DEF usage isn't even worth including in the equation as I've only put in one jug in 20000kms. If I only towed a couple times a year and the truck sat for 6 days a week, the 6.2 would have stayed. As a contractor, the truck goes 5-6 days a week and 3-4 days a week has a trailer behind it.

Good luck with your decisions!!
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