UPDATE: - with the 295x70r18 Nitto terras on it I now get 15-16 hwy and 14.5-15 mixed.

 

Tire Selection/Fuel Economy. Need help guys. I have a new 2013 FX4 SCrew Eco 2.5" Autospring Level 1.5 AAL in back.

Debating Between 2 Different tire sizes of Nitto Terra Grapplers, I have new 2013 Raptor Take off Wheels.

I am trying to balance Fuel Economy with off road capability.

LT295/70R17 D123R Vs LT305/70R17 E125R

Differences from stock

295 33.19” x 12.13” / 1.09” Taller / 1.13” Wider / Vehicle Height + .55” / D load rated / 55.2 lbs

305 33.98” x 12.36” / 1.88” Taller / 1.36” Wider / Vehicle Height + .94” / E load rated / 61.73lbs

Differences 305 Vs 295

305 .79” Taller /.23” Wider / Vehicle Height + .39” / +$62.00

 

Just got back from my first official "road trip" in my recently purchased 2013 F-150 Lariat Supercrew. (3.5L EcoBoost)

Our round trip distance was 1800 miles, with about 100 of that in-town driving at our destination; otherwise it was mostly interstate. Checking each tank-fill, the MPG was 19.3; 20.5; 18.2; 21.4; 20.5; and 20.1.

My average overall MPG for the entire trip was 20.1 - and that was mostly hiway driving.

I purchased this vehicle new, and at the end of the trip it shows 3960 miles. We weighed it recently on a Cat Scale, and it came in at 5740 lbs, with a full tank of fuel (26 gals) and 2 passengers. So, that means I'm hauling around nearly 3 tons of mass as I motor on down the highway, so 20.1 overall MPG seems to be not too bad. The rated MPG for this model is 16-22, so I would say that given all the versatility this truck has, it's weight, capacities, etc., I'm still a pretty satisfied customer.

Oh...and that EcoBoost...????...when you need power and acceleration, it comes through in fine fashion.

 

Great mileage

 

Ecoboost is fords turbocharged engine. In the f-150 it is a 3.5 liter Twin Turbo.

 

On a recent trip to the Anza Borrego park, the Ford computer registered 80 mpg for my 20 mile trip south on county road S2 from our campsite to I8. I was driving a 2012 Supercrew 3.7 w 3.73 gears and towing a 5000 pound trailer at 50 mph using cruise control. The road averages a 2% downgrade and we had a slight tailwind. So, conditions matter.

 

Thanks for the 411

One hallmark of Ford EcoBoost is its engines are turbocharged. Turbocharged engines use a device that forces in more air than a normal engine would receive. More air -- and more fuel -- makes an engine more powerful.
The device that forces this air into an engine is a turbocharger -- and some use the word "boost" to describe the process of turbocharging. That's where Ford gets the boost in EcoBoost. More important, turbocharging adds power without substantially decreasing gas mileage. That's different from simply enlarging an engine, which requires more fuel and hurts mileage.
Direct Injection

The second part of Ford's EcoBoost engine is gasoline direct injection, or simply direct injection. Direct injection is one form of fuel injection, which is the process used to send fuel into an engine. While typical fuel injection uses an extra step known as the intake tract to inject fuel, direct injection cuts out that process entirely. The result is a less complicated fuel injection process, which improves efficiency.

 

Ok so I clearly have a lead foot. I filled up the truck with E-free 93 then left to go for some sim training. While I was gone my wife took the truck to the beach a couple of times and comes to pick me up at the airport. She burned about 1/4 tank and the trip computer says she averaged 20.4 MPG I am going to let her drive more often.

 

I have the 5.0 v8 and drive average of 70 miles per day on my commute. primarily downhill on the way there at 60 mph and the same uphill on the way back. I am averaging un-abated payload, 18.7 mpg. I let everyone pass me keeping my eye on the tailgaters who seem to not get that they need to leave earlier and slow down just a tad and save lives and fuel.

 

Is that 5740 lbs total with towing a load?