6.7 Powerstroke MPG (Average Miles Per Gallon Explained)

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Written By Thomas Anderson

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In this article, we are going to look at the average mpg for a 6.7 Powerstroke, the factors affecting it, and how to improve the overall mpg of a 6.7.

6.7 Powerstroke Overview

The 6.7L Powerstroke is Ford’s reliable, powerful and efficient diesel engine designed and built specifically for the Ford Super Duty.

The Scorpion, as it was nicknamed during development, features a CGI block, four-valve aluminum heads, common-rail injection, variable geometry turbocharger and air-to-water intercooler.

With its own rocker arm for each valve and advanced fuel delivery system, the 6.7L Power Stroke delivers an impressive torque of 860 lb-ft at 1,600 rpm and horsepower of 400 hp at 2,800 rpm.

The 6.7L Power Stroke has been powering the Ford Superduty lineup since 2011 and continues to be an excellent choice for those looking for a high-performance diesel engine option.

6.7 Power Stroke MPG

Now, let’s look at how the 6.7 Power Stroke stacks up in terms of fuel efficiency. The EPA estimates that the Ford Super Duty models with the 6.7L Power Stroke engine can get up to 22 mpg in city driving and 30 mpg on the highway. These numbers are based on a combined average fuel economy of 25 mpg for both city and highway driving conditions.

Factors Affecting 6.7 Powerstroke MPG

We have looked at the factory 6.7 Powerstroke expected mpg, now let’s look at the factors that can affect your truck’s actual mpg.

Engine Modifications:

The first thing to consider is any engine mods you have made or plan on making. For example, if you have added an aftermarket intake system or exhaust then this will cause more air and fuel to flow into the engine which means more power but also greater fuel consumption

Unnecessary Idling:

Idling your truck for long periods of time can have a big impact on fuel economy. If you are going to be idling for more than 5 minutes, then you are better off switching the engine off and restarting it when you are about to leave.

Aggressive Acceleration:

Aggressive acceleration can lead to poor fuel economy. When you accelerate too quickly, your engine needs more power to move and this causes it to work harder.


Overloading your truck can have an impact on fuel economy. When you are driving a heavily-loaded truck, it is more difficult for the engine to move the vehicle and this causes it to work harder.

You should always avoid carrying too much weight in your truck as this will lead to lower fuel efficiency.

Driving Conditions:

The type of surfaces you are driving on and the weather conditions can have an impact on fuel economy. The different surfaces you drive over will affect the amount of friction between your tires and the ground, which in turn affects how much power is required for acceleration.

How to Improve a 6.7 Powerstroke MPG (Miles Per Gallon)

If you want to improve the miles per gallon (MPG) of your 6.7 Powerstroke, there are a few steps you can take.

To get started, install a performance chip in your engine to increase its torque and horsepower while also boosting fuel efficiency.

Additionally, make sure your tire pressure is set correctly and that you’re not carrying any extra weight in your vehicle. When driving, keep your speed under 70 mph to maximize MPG.

You can also reduce engine warm-up time by not running it for too long. Finally, use only minimal throttle when accelerating and consider installing a cold air intake for even better fuel economy.

Taking these steps should help you get the most out of your 6.7 Powerstroke engine!