The Verdic is in, New Ford 7.3 V-8 Gas mpg not so Great

timmac wrote:
5.5 to 6.1 mpg while pulling a load, looks like the new 7.3 V-8 gets about the same mpg as the 6.8 V10..

Different motor same mpg, looks like the gas motorhomes are still stuck with bad mpg..


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:Z

This MPG comparison is very rough. Different day, wind, weight, tires, temperature. Short distance.
I want to see more science to compare 6.8V10 and 7.3V8, somebody on two same (or very similar) model and weight motorhomes following each other quarter mile apart. At least 300 miles distance, preferably on empty roads and with drivers rotation.

Gives the Julio's on TFL something to do anyway.

Did both trucks decide direct gear in trans was used? If yes 6 or 10 speeds doesn’t matter for a highway cruising mpg test.

Wind and cooler denser air for red truck.

It would take some work but a test using 91 gas to allow the ecm to optimize timing vs the “minimum” recommended 87 would be interesting on a $/miles basis

Sometimes I just shake my head on these. I know there is no perfect test, but you should at least test under the same conditions. Which they didn't. They mention a couple times on the video that they were fighting the wind when they were with trailer in the Ford.

Also, I'm not sure they are even using the same test track. The towing test are on I76 east. That non-towing trip with the Ford wasn't on that stretch of road - it is on the diagonal from Longmont to Boulder - not an interstate, there is more traffic and stop lights. Is that the same road they used for the unloaded Chevy test?

Not defending the 7.3 blindly, but we really need to get some real-world test results before anyone makes a judgment, good or bad, about the MPG of the 7.3.

Terryallan wrote:
Fuel mileage, and RVing do NOT belong in the same sentence. Gonna play. you got to pay.

Got that right!

I'm disappointed to read the F53 will retain the 6 speed.

7.3 V8 gudzilla EcoBoost 600hp!!

With the newer 10 speed and the new 7.3 I would expect better mileage, at least 1 mpg better. I got better with my 02 V-10 Excursion.

I personally would hope for better drive ability and mileage. Anything less is unacceptable.

If Ford wants to do something good for the F53 then replace the front solid axle with independent and offer an air ride option.

Yes, yes, and yes!

I am more interested in driving dynamics over fuel mileage. If it got the EXACT same mileage with improved driving characteristics, I would be happy.