Does a canopy on a run-down '77 Ford F100 cause more drag thus making it even less fuel-efficient?
Does a canopy on a run-down '77 Ford F100 cause more drag thus making it even less fuel-efficient?
I'm sure it does. Probably 5 to 10 percent. Putting a windbreaker on a semi or a straight truck will get you about 5 to 10 fuel improvements. Give or take. Depends on highway verse city mileage. You are creating resistance that will make a negative effect on fuel economy. However your biggest problem with fuel efficiency would be the 77 Ford.
So they say, but youd never notice
Not noticeably. The engine is the culprit here, as well as slow rear gears and no overdrive.
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Aerodynamics on pickup trucks are weird. With testing showing that tailgate UP gets better economy than down, it kind of throws conventional wisdom out the door.
As Harry says, even if it does, you'd almost certainly never notice the difference. This assuming the canopy is flush with the roofline of the truck, and not sticking up above. If it sticks up more, the drag would be increased significantly.
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