The average actual calculated MPG for our 2000 Excursion V10 over 93,000 miles is 13.3 (very little towing). The best was 16.7 on a trip from Alamosa, CO to SW Kansas (favorable conditions at night). If you rode with me you would know why I get better MPG than most (very little brake wear after 93,000 miles) .

Anyone else notice a 1.5-2 MPG drop in fuel mileage when the outside Temp. drops below about 50 degress? I put a cold cover on (usually helps) and sometimes when I get the exhaust system good and warm the MPG improves for a while. I usually get 12.5 MPG on the highway when driving into a cold, head (or side) wind at 65 mph.

The fuel mileage computer reading is almost always 1+ MPG higher than calculated (after a full tank without resetting) (just about the same as on 2009 F-150, 2006 Five Hundred, and 2006 Montego that we drive; why can't they calibrate it correctly?).

 

13 to 15 not towing and arount 9 to 10 towing a 37' travel trailer with one hand on the trailer break switch.

 

In the summer I can get 13-13.5 mpg on the freeway. This winter I have yet to get better than 10.5 mpg. The temps have varied from -20 to 30 F.

 

The drop in mpg in the winter months is more from the winter blend fuel than it is the colder weather.

 

Minnesota has ethanol year round. In summer, we notice all of our vehicles get better mileage on long trips once we get outside of MN

 

I have wondered about the winter blend fuel, but the thing is that it doesn't matter what time of year it is that my Excursion MPG changes noticeably when the Temp. drops below 50, and it improves when it is warmer, even during the winter. It is true, though, that I have no idea when the fuel blend has been "winter" or not.

 

How about 400 bucks rulon

 

when i had the 3.73`s i was getting 12 rural and 15.2 hwy. now with the 4.30`s i get 12.5 rural and 15 hwy (65mph). towing i avg 8.3. this summer i got 15.7 hwy.....construction zone, single lane doing 50!

 

Wow, a thread back from the dead. Glad mileage hasn't changed in 9 years!

 

116,000 miles 14 hwy speeds, 10 for the average right now. 6.8 V-10. No mods as of yet.

Hope this helps.

 

I bought a 2000 Exc in June drove it 500 miles put a new motor in it 116,153 on odometer have driven it 4,094 miles have an app on phone which keeps tack of gas every fill up and at this time with 50/50 driving it says I got 10.2 running from Vermont to Maine and local driving in both states. Sometimes pulling 14 trailer with motorcycles and sleds.

 

i'm still 8-10 in town and 11-14 highway.

 

4.30's, 265's 12mpg around town, 15-16open highway if I keep it to 70mph.

 

this past summer on a 3400 trip from ND to AZ to CO and back I averaged 12.8. Not terrible considering we had 9 people and were completely loaded down.