All ActivityMost RecentMost LikesSolutionsRe: The Verdic is in, New Ford 7.3 V-8 Gas mpg not so Great timmac wrote: Yes it is a fast mpg test and not a long run test but it does show that the 7.3 is still a gas hog, even if it was a better day and driving longer still appears it wont break the 7 mpg range. I have 16-25 MPG towing my trailer. Does it means my engine more efficient? No. It means my trailer is small. With gas engines we are talking about 0.1..5% difference in efficiency, not 20..100% difference in loads. To find which engine is better should be pure "scientific" comparison, otherwise it is wind, speed and other 10+ factors.Re: 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.. ***Link Removed*** :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.