I tried E-85 once in my 2011 FX4 Supercab 5.0L. It made noticeably more torque, especially at throttle tip in. However, I went from averaging 18.5mpg (Premium 91 octane Fuel) to getting 12.7mpg in same driving circuit. My driving habits were the same, as I am generally pretty light on the throttle.

To me, the extra torque was fun, but not worth the overall MPG loss. I think I remember reading somewhere that a stock 2011-2014 5.0L F-150 will make go from 360hp and 380lb/ft of torque to 375hp and 400lb/ft of torque on E-85. I've also seen it proven on the Dyno that putting 91 octane in the 5.0L vs 87 octane, will increase horsepower by 10 to the rear wheels and about the same for torque.

The 5.0L I saw tested put down about 300hp and 325lb/ft of torque (Rear Wheels) on 87 octane, then with no other modification except a tank full of 91 octane it put down 311hp and 335lb/ft of torque (Rear wheels). It's important to note that this truck was showroom stock, no tunes no nothing. It went to over 350RWHP with a 91 performance tune.

But back on topic of opinions of these engines...Well, I own a 2011 F-150 FX4 Supercab 5.0L, and so far it's been fantastic. It's plenty powerful. The 5.4L makes it's peak torque of 365lb/ft at a little lower RPM than the 5.0L makes it's peak of 380lb/ft, however having experience with both of these engines, I can definitively say the 5.0L will absolutely destroy the 5.4L in every performance bracket. The only issue so to speak I've had with my truck (which I ordered from the factory, and currently has just over 40,000 miles on it) Is the battery for some inexplicable reason started losing charge around 14,000 miles...It was replaced under warranty no problem, and has never been an issue since.

On the topic of the other trucks mentioned here. I don't have a lot of experience with the Ecoboost, I've driven a few of them, ranging from a 2011 model, a 2014 model and a new 2015 model. I will say that it makes intoxicating torque, however, I'm not a fan of the V6 hum. I prefer V8 growl, which is one of the reason's I've got a 5.0L parked in my driveway and not an Ecoboost. To me the Ecoboost only really shines greatly over the 5.0L when towing. Otherwise, hauling light loads or driving around unloaded, I personally don't feel much if any difference between Ecoboost trucks and my 5.0L. And that's not to say the 5.0L is a poor engine for towing. I hardly ever tow honestly, but I did once tow a trailer loaded with 3 ATV's and a tool box on it, total weight was around 7000lbs. My 5.0L had absolutely no issue with this and never felt starved for power.

I have the least experience with the 6.2L. I've test driven a couple. One F-150 and one F-250, both 4X4s The F-150 model was an absolute monster, and had no issues leaving two strips of smoldering rubber on the pavement. The F-250 was a little sluggish by comparison to the lighter more nimble F-150, but nonetheless it was an impressive improvement in power over the outgoing 5.4L.

 

I'm still looking. Once in a while a 2011 falls close to my price range but is usually missing one or more of the key features I want.

And, be damned, a 2010 FX4 with 108K miles is for sale locally for $18,995 and it has everything I want. Except its a 2010. And there's another, 2 hours away, for $17,500 with 112K miles. Both are loaded as far as options. Can't touch a 2011+ FX4 for anything less than 20K locally and those all have over 100,000 miles.

And it just doesn't feel right to pick up a payment for a truck that's only got 80K less miles than my current truck. I know I'll be getting a lot more truck (and less rust) in the end but it doesn't make it less painful.

Is there a point to my post? No, I guess not. I just want stuff I can't afford and wanted to complain about it. Carry on folks. haha

 

I wouldn’t completely rule out a 2010 if it has everything you like. Both my 5.4L F150’s where good trucks. My niece competes all over the country in events with her horse. She has almost 200,000 miles on her 2007 F150 with a 5.4. A lot of that towing her horse & trailer. Her only issue was a stuck spark plug at 110,000 miles.

 

Good to hear. I'm not really scared of a 2010 with the 5.4 but I sure would like the better mileage out of the newer motors. Plus the truck apps screen is REALLY nice.

So... You've got an 'S' code Cougar. What year? I've got a '68 'X' code base Cougar. I've had it since I was 14, my Dad and I restored it and I had it done when I was 16. Still in love with the car to this day haha

 

I have an early model 67 XR7 GT. It was my Uncle's car. in Az. He parked it in the early 70's and it sat until I picked it up in 2005. I took the car completely apart, redid every part & put it back together. It only took 8 years
The car is a lot of fun. Did you keep yours stock? Mine is very close to original. I hoping to take mine out to Carlisle this year or next year.

 

It's mostly stock. I changed the color from white to Dark Aqua Metallic (stock color for the year) and updated the interior a bit to have cloth inserts in the seats. Put a posi with 3.25:1 gears from the open 2.73:1. Other wise it's stock. One of these days I'm going to put the A/C stuff back on it. Oh, and I ditched the Holley carb for an Edelbrock. I got tired of the Holley leaking every week.

 

Super sweet, get some photos of it up if you can.

Our '69 XR7 390 AT 2nd owner with 77k was getting a refresh this winter. Fresh paint is now on and it's being buffed out. I can't wait take it for a spin when it's done in a few weeks.

 

cool, we might have to start a Cougar thread on this site!

 

I think it's kinda funny that we all have 390 cars. And, yes, we've totally derailed the thread. It's ok since I'm the OP, right? haha

 

Looks, nice. Yes but do we all have 6.2L in our trucks?