This is the only reason I don’t own a PowerBoost. Read too many similar experiences. Just doesn’t seem like enough of a jump from the EcoBoost to justify the upgrade.
Ellis said:
This is the only reason I don’t own a PowerBoost. Read too many similar experiences. Just doesn’t seem like enough of a jump from the EcoBoost to justify the upgrade.
Driving backroads in BC, hypermiling, and keeping it under 100 km/h (~60 MPH), I’ve squeezed out 39 MPG (6L/100km). On the highway at 100 km/h, I got 28 MPG.
In Phoenix with mixed driving? Anywhere between 16-22 MPG depending on traffic and my driving style.
PowerBoost performs well under the lab conditions used for EPA ratings. Just like how EVs get higher rated range than real-world results.
The test cycles have super slow acceleration (max 3.2 MPH/s, which is like an 18-sec 0-60 time), and the average highway speed is 48 MPH with a max of 60 MPH.
Basically, the PowerBoost shines in this type of testing.
At the end of the day, it’s still a truck. I bought it for the onboard generator and extra torque—the better MPG is just a bonus.
Bought my PowerBoost in the first month they came out. Used to get around 22 MPG, now four years later, I’m down to about 18.
Before anyone asks—I drive like an old man. Cruise control at 60 MPH most of the time. Nothing changed, but efficiency has definitely dropped.
I drive mostly in-town and see 24+ MPG all the time. On my way home, I often hit 30.
FYI for anyone importing a PowerBoost from Canada to the US—since it’s rated at 24 MPG, it avoids the Gas Guzzler Tax. You’re welcome. 
EPA ratings assume we all drive 55-65 MPH. Also, car manufacturers lobbied for the current MPG test formulas, so they tend to get the best-case results.
The government should ignore lobbyists and come up with real-world numbers.
@Ash
Most MPG figures are self-reported by manufacturers. Only a small percentage actually gets verified by the EPA.