Yeah its old but always funny

 

ugh... I am going back and forth on the 6.2 vs. 6.7 decision for a superduty.

The $9K premium is a big hit. Gas is so much simpler. I'm coming from an '03 7.3 motor, which has been absolutely great for me and does everything I need. Truck is just getting older and needs updated.

For those that have made the switch from 7.3 to 6.2 (w/ 4.30). Does the 6.2 perform as well as the 7.3? I currently get ~17 MPG, I understand I'll be dropping to 12-14.

What I really would like is a 600 ft-b diesel that gets 20 MPG. Or a 6.2 Ecoboost that gets ~17 with 550 ft-lb of torque. With the diesel torque wars, practicality seems to be left behind.

 

A 6.2 4.30 will pull just as good, even a little stronger than your 7.3. You just have to understand and except the fact that it can't do it it at 2k rpm's. That's what most guys coming from diesels struggle with. The motor also has the capability of reving more than twice as high. Daily driving is no contest, the 6.2 wins hands down.

 

I have no regrets switching from my reliable 7.3 to the 6.2. What I have observed:

1) The 6.2 pulls effortlessly. It's actually less stressful that my last truck in part due to the tranny.

2) As stated, you need to run the rpm up. above 3000 you can feel it, at 4500 it pulls like a beast. There is no lack of power.

3) Mpg's are pretty much the same for...9-10 towing, 10-11 empty city, 13-14ish empty highway. I've never seen 20....never been close.

My 7.3 was mod'ed and had more power than the 6.2 but the ONLY time I notice the difference is I don't have to drop a gear or two to "go". There was nothing wrong with my 2000 either but it was finally time to upgrade and I was tired of the diesel maintenance and wanted something easier and simple. And dang if it aint quiet too.

 

I think everyone agrees that excepting ultra-heavy trailers, the 6.2L V8 gets the job done without trouble.

That said, the way the two engines get the job done couldn't be more different. The 6.2L truck needs to drop down several gears and rev up considerably. The diesel engine either does not drop any gears or only drops one.

Next, consider the rev difference. The 6.2L engine at 4500RPM is bellowing out a nice V8 tone. The diesel makes peak torque at 1800RPM and peak horsepower at 2800RPM. So it never gets loud or feels like it is working hard. Some people like the loud V8 tone. But towing on a long trip, even lighter trailers, gets old for me listening to that loud engine sound every time you come to a hill.

The 6.7L is magnificent. It is *never* loud. It cannot be compared to the old diesels. It never runs out of power. It never feels like it is being overworked.

At this point, I've got a lot of towing miles behind me with 6.2L trucks, 6.7L trucks, and even 3.5L EcoBoost trucks. If you're coming from a diesel or EcoBoost, the 6.2L is probably going to be unsatisfying except for knowing that the engine is simpler and maintenance is a lot cheaper.

That said, the 6.2l is proving to be a very good, reliable engine. I guess it just depends upon what you're used to and how much your wallet can take a hit.

 

No regrets here...love the 6.2.

I am seeing 11-12 city and 15-17 hwy with 5500k miles so its still loosening up. I also like the E85 option as its very cheap in Dallas and it runs good on it....towing with E85 tho the mileage suuuuuccckkkkks!

 

Where can I find the power and torque curves for the '17 6.2 and '17 6.7.

I'd like to look at some comparisons of peak torque vs. redline RPM, calculate the wheel torque once your take trans and rear-end ratios into account and a few other items. Gas engines are designed to rev faster...but do they run proportionately faster than a diesel to develop their power?

and with respect to noise...I think the 6.2 @ 4500 RPM is still MUCH quieter than the 7.3 @ 1800 RPM.

 

When I was looking to compare the 6.2 to the 7.3 I had I just google it. You might try a few of the key words. 6.7 vs 6.2 torque etc

 

I came from a 2011 6.7 f250 and recently traded for a 2017 f250 with the 6.2. I tow a 26 foot travel trailer the loaded weighs roughly 6500lbs. I had no complaints with the 6.7. Loved the truck, but maintaince is expensive. My truck was almost out of warranty and I had a early build 2011 that may have had the valve issue. So decided to go with the 6.2 in my 2017 just because I don't tow but once every month and a half or so. So the 10k 6.7 option just didn't make sense. Now my 6.2 is getting roughly 13.5 mpg in stop and go traffic. My 6.7 got about 16.5 mpg. Now like said above the 6.2 pulls perfectly fine, just takes more rpm.

 

Just makes me chuckle on the never runs out of power Buddy of mine was pulling the Rockies with a 30ft 5th coming back over from Montana to Oregon, said he topped out his 2016 6.7... it could do 60 up the hill and no more.. LOL

the next week he went and bought a semi tuck haha

 

Just stating my experience since he asked about going from a 7.3 to 6.2.

I've driven and ridden in 6.7's so I know all about how they run and it's not worth the $9k for my use. I unlike many here based my purchase more on need and not a "want". I bought the cheapest rig I could get to do the job I need it to do. If a guy can afford it or really needs it, go for it and have a blast. After maintaining the same diesel truck for 15 years I think I'll pass since I'm completely over the macho diesel power thing. Now if a guy buys a new truck more than he changes underwear then there is no problem since he doesn't have it long enough to enjoy the long term maintenance bill.

Saying "Never" running out of power is an pretty ignorant statement. I'm always amused at the guy in his big diesel with a triple axle 5th wheel blowing by me on the flats and then catching him on a pass and he's doing 50.

 

I moved from the 2001 7.3L to a 2017 6.2L. The 7.3L was a great truck and still ticking along just fine. But she was starting to get a bit long in the tooth and things were wearing out. The stats between the 7.3L and the 6.2L are very comparable, with the newer truck having a larger towing capacity (in my spec). Driving experiences favor the new truck. It hauls very well. Granted, there are times it might need to downshift a couple gears, but this truck has 6 gears. The 7.3 only had 4.

The new truck certainly accelerates harder and is faster than the 7.3. For the most part, the motor is also quieter. Much quieter. The new one also rides a lot nicer. In my opinion, I bought a great replacement for my venerable 7.3L. I'm extremely happy with my choice.

 

I wouldn't buy the diesel if it was $8,000 CHEAPER

 

Big thread in the seventeen section diesel owners getting UNACCEPTABLE fuel economy.

 

I was reading about 6.7 fuel mileage in some of the diesel threads. It's only 2-3 mpg better. With the exception on a poster that says 20-22 mpg after deleating emissions.