How are y'all liking the new super duty with the 6.2L? What mpg are y'all getting with 4.30 gears? How's that new transmission in the 250's? I had a 2015 f250 6.2L and got rid of it, the only thing I wish I got in that truck was 4.30 gears. I was thinking about getting the 6.7 but now I'm debating about it.

 

Love it so far. The gears and power bump are everything. I don't notice any real tranny difference.
I am averaging a solid 1+ mpg gain over my last 6.2 3.73 truck. I have yet to make a significant hwy run, so for now my numbers are just my daily town/rural commute.(right around 12.5 hand calc'd per tank) I am also running 34.5" tires now as opposed to the stock 275/70/18's on the 2016 I traded. I am still driving it pretty hard as I'm still enjoying the new power.

 

i dont understand the gear ratio whats difference between 4.3 and 3,.73

 

This link from ConstructionPros.com may help some:
How to Pick Pickup Truck Axle Gear Ratios to Improve Performance
My main reason for ordering a 2017 to replace my 2016 was for the 4.30 gears. The 4.30 and the 6.2 work very well together.

 

Filled up today, 12.89 mpg hand calc'd. This was my normal driving tank for work(25.48gallons). My last truck would have been 11.

 

Is that mostly city or hwy driving?

 

It means your driveshaft will turn 4.3 times every time your wheels turn once. and 3.73 gears will turn the wheels once for every 3.73 turns on the driveshaft. You'll get a bit more torque with the 4.30's but 3.73 gears will give you better mileage. If I had known how bad my mileage was going to be with the 4.30's I would have ordered the 3.73. My friend has the 3.73 gears and we both tow a 10k trailer. He averages the same mpg when towing as me and he gets 17 mpg on the highway compared to my abysmal 10 maybe 12 on a good day. There's a reason you don't see too many of these trucks with the 4.30's. Unless your towing really heavy a lot I would stick with the 3.73's.

 

If you are only getting 10 to 12 empty hwy and your truck has stock tires and tune I would take it back to Ford and have it checked out. We just did a 75 mile round trip on a 2 lane road with big changes in elevation and averaged 15.2, if your friend is getting 17 it must be with a big tail wind because the only time I've ever averaged that high was with one.

Lower rear end gears (higher numbers) will give you more power to the road because of torque multiplication no matter what gear the transmission is. There will be a small loss of hwy mileage but maybe a gain in town depending on how you drive.

Denny

 

And thats why you see a lot of threads on here on how much would it be to switch 3.73 gears for 4.30's.

 

I have a 2014 CCLB 4x4 with stock tires, stock height, and I added a tune but before that I was averaging 12 mpg in my daily commute and with all highway at 65 cruise controlled I was getting 13.1 for a full tank of just highway mileage.. So I know these guys are saying they are getting 15+ but I have never seen it and I have the stock 3.73 gears.. I would gladly have the 4.30 gears for more torque.

And yes. when I bought the truck I asked them to make sure the Computer was updated and they said their software didnt show any updates for it.

Edit: I should add, on the last tank after the tune.. I got 11.7 mpg and thats with a 17 mile commute to and from work. normally around 55 - 60 mpg and just alittle town traffic but not bad.

 

Roughly 80% town, 20% hilly back road driving, no extended hwy driving.

 

You are one of the only guys I see complaining about 4.30's. Its true you will get better mpg towing 10k with 4.30's. I guarantee if you were to do nothing other than swap 3.73's into your current truck you would not gain any noticeable mpgs.
Guys who order trucks tend to order 4.30's. Sales managers who know nothing about how the 6.2 performs, order the default 3.73's. This is why there are so many 3.73's on the lot.

 

What gets me is how the plow-equipped regular cab XL gasser trucks in snow states all seem to come with 3.73s.

You'd think that for a truck that spends 80% of its life pushing snow in 1st/2nd gear, the 4.30 would be a no-brainer. But I guess the dealer orders what sells most easily, even if its not the ideal product for the customer.

 

My friend has 3.73's that's why he gets that kind of mileage. You have 2wdrive that's why you're getting 15 mpg. There's nothing wrong with my truck.

 

It's not the sales manager who makes the truck with 3.73's. It's ford. If ford thought trucks with 4.30 gears would sell better then why wouldn't there be more trucks on the lots with those gears? I guarantee if I had 3.73 gears I would get 2 more mpg.