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#6926528 - 10/19/17 10:55 PM 6.7 vs 6.2
pbs76 Offline
Woodsman

Registered: 09/19/08
Posts: 169
Loc: McKinney, TX
In the market for a late model F-250. Convince me one way or the other between diesel or gas. Will be used 90% of the time as a daily driver around town. Just want the ability to hook onto a heavy trailer when I need to without doing a wheelie or the truck screaming through the gears. Thanks in advance for your input.

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#6926758 - 10/20/17 08:33 AM Re: 6.7 vs 6.2 [Re: pbs76]
TxAg Online   content
Extreme Tracker

Registered: 01/15/07
Posts: 3538
Loc: Live in Katy, Hunt in Llano Co...
How heavy is "heavy trailer" and how often are you pulling it?
_________________________
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#6926783 - 10/20/17 08:45 AM Re: 6.7 vs 6.2 [Re: pbs76]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 26306
Loc: Texas
Do you already have the heavy trailer? If not and no plans to buy one then I would buy something different. If you just want to drive a big truck then go big or go home 4x4 diesel crew cab deleted with stacks.
_________________________
It's hell eatin em live

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#6926866 - 10/20/17 09:39 AM Re: 6.7 vs 6.2 [Re: pbs76]
Rustler Offline
Veteran Tracker

Registered: 03/01/07
Posts: 3447
Loc: Carrollton/ Young, Blanco coun...
I have 6 - 6.7's & 3 - 6.2"s, 10 - 7.3's,,, they are completely different animals.

When towing heavy the 6.2 must rev high into its RPM range to produce the power necessary to accelerate the load to your desired cruising speed.
They have to down shift more frequently than a diesel to maintain your desired cruising speed to raise the RPM back into the engines power band which is at a higher RPM than the diesel.
The 6.2 is an extremely reliable engine, as is the transmission both designed to work, rev high & up/down shift when necessary with zero reliability or longevity concerns.
Also the engine sounds sweet when revving high under load.
One of mine (6.2) has 302,400 miles, I bought it with 100,800 miles on it with no past service records, cheap.

My daily driver is a 6.2 ~ 4:30, sometimes it is hooked to a gooseneck 1-3 times per month & a few dozen to a few hundred miles, sometimes a gooseneck stays behind it for a week or two & a few to several thousand miles.
I can pick whatever I want to drive from my Peterbilt's, one Mack to f750, f550, f450, f350, f250's.

Nothing I can say to convince you one way or the other.

If I needed a diesel I wouldn't buy a gas engine, if I didn't need a diesel I would buy a gas engine.
If I just wanted a diesel powered pickup I'd buy a diesel engine.
The whole need vs want thing.

I have 35 years worth of meticulous repair, maintenance & CTO/O records on all my vehicles if you had a specific question.

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#6926869 - 10/20/17 09:43 AM Re: 6.7 vs 6.2 [Re: pbs76]
Shotgun Willie Offline
Tracker

Registered: 01/05/10
Posts: 975
Loc: McKinney, TX
Higher purchase price. Higher maintenance price. Higher repair costs. And no need for a diesel. That covers about 90 percent of the diesel owners in the metroplex.

If it's what you want, buy it. But it sounds like it's not what you need.

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#6926873 - 10/20/17 09:46 AM Re: 6.7 vs 6.2 [Re: Rustler]
Shotgun Willie Offline
Tracker

Registered: 01/05/10
Posts: 975
Loc: McKinney, TX
Originally Posted By: Rustler
I have 6 - 6.7's & 3 - 6.2"s, 10 - 7.3's,,, they are completely different animals.

When towing heavy the 6.2 must rev high into its RPM range to produce the power necessary to accelerate the load to your desired cruising speed.
They have to down shift more frequently than a diesel to maintain your desired cruising speed to raise the RPM back into the engines power band which is at a higher RPM than the diesel.
The 6.2 is an extremely reliable engine, as is the transmission both designed to work, rev high & up/down shift when necessary with zero reliability or longevity concerns.
Also the engine sounds sweet when revving high under load.
One of mine (6.2) has 302,400 miles, I bought it with 100,800 miles on it with no past service records, cheap.

My daily driver is a 6.2 ~ 4:30, sometimes it is hooked to a gooseneck 1-3 times per month & a few dozen to a few hundred miles, sometimes a gooseneck stays behind it for a week or two & a few to several thousand miles.
I can pick whatever I want to drive from my Peterbilt's, one Mack to f750, f550, f450, f350, f250's.

Nothing I can say to convince you one way or the other.

If I needed a diesel I wouldn't buy a gas engine, if I didn't need a diesel I would buy a gas engine.
If I just wanted a diesel powered pickup I'd buy a diesel engine.
The whole need vs want thing.

I have 35 years worth of meticulous repair, maintenance & CTO/O records on all my vehicles if you had a specific question.


Have you noticed a significant difference between the 6.2/4.30 versus the 6.2/3.73? From what I've read, the performance difference far makes up for the mileage difference.

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#6926880 - 10/20/17 09:51 AM Re: 6.7 vs 6.2 [Re: Rustler]
BOBO the Clown Online   content
decoy

Registered: 04/19/07
Posts: 42720
Loc: Metroplex
Originally Posted By: Rustler
I have 6 - 6.7's & 3 - 6.2"s, 10 - 7.3's,,, they are completely different animals.

When towing heavy the 6.2 must rev high into its RPM range to produce the power necessary to accelerate the load to your desired cruising speed.
They have to down shift more frequently than a diesel to maintain your desired cruising speed to raise the RPM back into the engines power band which is at a higher RPM than the diesel.
The 6.2 is an extremely reliable engine, as is the transmission both designed to work, rev high & up/down shift when necessary with zero reliability or longevity concerns.
Also the engine sounds sweet when revving high under load.
One of mine (6.2) has 302,400 miles, I bought it with 100,800 miles on it with no past service records, cheap.

My daily driver is a 6.2 ~ 4:30, sometimes it is hooked to a gooseneck 1-3 times per month & a few dozen to a few hundred miles, sometimes a gooseneck stays behind it for a week or two & a few to several thousand miles.
I can pick whatever I want to drive from my Peterbilt's, one Mack to f750, f550, f450, f350, f250's.

Nothing I can say to convince you one way or the other.

If I needed a diesel I wouldn't buy a gas engine, if I didn't need a diesel I would buy a gas engine.
If I just wanted a diesel powered pickup I'd buy a diesel engine.
The whole need vs want thing.

I have 35 years worth of meticulous repair, maintenance & CTO/O records on all my vehicles if you had a specific question.


Rustler pretty much just summed it up to a tee.

I’m biased because My daily driver had been diesel (5.9, 6.0, 6.4, 6.7)for last 20 years, but I have used the 6.2 gas a bunch.

I can tell you if you are use to a 6.7 the 6.2 will feel gutless but adequate once you get RPMs up.

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#6926881 - 10/20/17 09:52 AM Re: 6.7 vs 6.2 [Re: pbs76]
Wilhunt Online   content
Veteran Tracker

Registered: 07/26/13
Posts: 3324
Loc: New Braunfels, San Saba county
Go with the 6.2 very nice motor. Drove a NEW one about 180 miles at speed of 75 to 80 2 weeks ago and got 16 miles per gallon.

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#6926886 - 10/20/17 09:55 AM Re: 6.7 vs 6.2 [Re: pbs76]
pbs76 Offline
Woodsman

Registered: 09/19/08
Posts: 169
Loc: McKinney, TX
Thank you all for the great comments, and you are right, I am fighting that whole want/need thing.

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#6926967 - 10/20/17 10:54 AM Re: 6.7 vs 6.2 [Re: Shotgun Willie]
Rustler Offline
Veteran Tracker

Registered: 03/01/07
Posts: 3447
Loc: Carrollton/ Young, Blanco coun...
Originally Posted By: Shotgun Willie

Have you noticed a significant difference between the 6.2/4.30 versus the 6.2/3.73? From what I've read, the performance difference far makes up for the mileage difference.


IMO, the 4:30 vs 3:73 for the 6.2 is night & day. 4:30 being far more work suited, no unbiased person that has driven any of the 3 of mine would say anything about being sluggish or doggy. On the other hand I'd even say 3:73 feels sluggish until you get the rpm up.
Understand except for my daily driver these are work vehicles that tow / haul everyday all over TX & the western US.

A good friend of mine has a 6.2 3:73 SC 8' 4wd, he lives directly in the middle of BFE Nm, he drives like he has an egg between his foot & the accelerator, I doubt the pickup has ever seen 70 mph, his actual / true mpg is substantially better than anything any of mine will ever get.

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#6926998 - 10/20/17 11:18 AM Re: 6.7 vs 6.2 [Re: Rustler]
Shotgun Willie Offline
Tracker

Registered: 01/05/10
Posts: 975
Loc: McKinney, TX
Originally Posted By: Rustler
Originally Posted By: Shotgun Willie

Have you noticed a significant difference between the 6.2/4.30 versus the 6.2/3.73? From what I've read, the performance difference far makes up for the mileage difference.


IMO, the 4:30 vs 3:73 for the 6.2 is night & day. 4:30 being far more work suited, no unbiased person that has driven any of the 3 of mine would say anything about being sluggish or doggy. On the other hand I'd even say 3:73 feels sluggish until you get the rpm up.
Understand except for my daily driver these are work vehicles that tow / haul everyday all over TX & the western US.

A good friend of mine has a 6.2 3:73 SC 8' 4wd, he lives directly in the middle of BFE Nm, he drives like he has an egg between his foot & the accelerator, I doubt the pickup has ever seen 70 mph, his actual / true mpg is substantially better than anything any of mine will ever get.



Good to know, thanks. I've had a 6.0 GM and (2) 5.4 Fords, and they were all pigs. The 6.0 because of 3.73s and lousy programming by GM, and the 5.4s because, well, they're 5.4s. My next truck, I'm willing to sacrifice a little mileage to get a truck that'll get out of it's own way. I hate, *hate* this trend of having to wind out a motor to get anything out of it.

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#6927038 - 10/20/17 12:00 PM Re: 6.7 vs 6.2 [Re: Shotgun Willie]
Rustler Offline
Veteran Tracker

Registered: 03/01/07
Posts: 3447
Loc: Carrollton/ Young, Blanco coun...
Originally Posted By: Shotgun Willie

Good to know, thanks. I've had a 6.0 GM and (2) 5.4 Fords, and they were all pigs. The 6.0 because of 3.73s and lousy programming by GM, and the 5.4s because, well, they're 5.4s. My next truck, I'm willing to sacrifice a little mileage to get a truck that'll get out of it's own way. I hate, *hate* this trend of having to wind out a motor to get anything out of it.


Sounds like you want a diesel, like I said the 6.2 has to rev high when under load to be in its power band, its the way gas engines have been, for ever.
Driving around empty or with 1000lbs in the bed my 6.2 4:30 is quite peppy, no slouch, even with 1000lbs in the bed going towards Denver it will downshift into 5th - 4th at times & rev high if you want to maintain a set speed.
Doesn't bother me to hear the engine & see the tach swing up, if it bothers you, probably won't be happy.

There is no free lunch, gas power = RPM, torque / hp curve is much higher in the rpm band than diesel.

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#6927067 - 10/20/17 12:35 PM Re: 6.7 vs 6.2 [Re: Rustler]
Shotgun Willie Offline
Tracker

Registered: 01/05/10
Posts: 975
Loc: McKinney, TX
Originally Posted By: Rustler
Sounds like you want a diesel...


Need vs. want... laugh

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#6927113 - 10/20/17 01:32 PM Re: 6.7 vs 6.2 [Re: pbs76]
Greg Z Online   content
Tracker

Registered: 02/01/05
Posts: 885
Loc: TX, Rockwall
The price of diesel has come down quite a bit and I have seen parts of the state where the price was the same as regular unleaded. I drove the 6.7 2013 that I have posted. Plenty of power and when running between 60-70mph, I averaged 20.5 and never below 16.5 regardless of speed. Have not driven the 6.2 so I can not speak to it.

Good luck!
_________________________
Greg Ziemer
Sewell Lexus
214-597-6006
Life's too short... Enjoy the ride!

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#6927146 - 10/20/17 02:11 PM Re: 6.7 vs 6.2 [Re: pbs76]
chongo Offline
Pro Tracker

Registered: 12/08/08
Posts: 1093
Loc: Melissa, Tx
I've owned both, 2011 6.7 F250 KR 4x4, exact same truck in a 2015 with the 6.2.

The 6.7 was more fun to drive. But the 6.2 did everything I needed a truck to do. As I started to see more and more fuel system issues with the 6.7 and other motors I began asking myself the question, am I willing or can I at the time, write a check for 10-13K for a fuel system replacement if it grenades on me or bad fuel, or somehow/someone put gas instead of diesel in it?

There are plenty of people who've experienced this, some have gotten lucky and insurance covered it, some not so much. The fuel systems in the newer trucks are very sensitive and when it goes, you're looking at an extremely expensive repair. Not so with a gas motor.

This was the deciding factor which pushed me from the want to the need side of the argument. I traded the 6.7 for the 6.2. It took some adjusting but I grew to really like the truck. The 6.2 is one of the most reliable gas motors out there and will run harder, longer than any newer diesel motor and for less $.

If you legitimately need the diesel then get it, if you don't then you'll be happy with the 6.2.

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