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& to the Fleetwood Family. Congratulations on your new-to-you PA.
We get our best mileage around 60mph (+/- 2mph). You definitely do not want to have a "lead foot" when driving a motorhome.
Lori & Dave - FMA #3415 | FMCA #F419886 | RV/MH Hall of Fame Lifetime Member 2006 Fleetwood Bounder 36Z & 2014 Honda CRV AWD, My iRV2 Photo Albums How is it one careless match can start a forest fire but it takes a whole box to start a campfire?
Just came back from the East Coast trip of 6250 miles. The average for the trip was 7.937 MPG, driving between 60 and 65 (some spots up to 70). Didn't tow this time. May not be relevant as my rig is a Ford F53 with the V 10. The best mileage on the trip was 9.878 MPG for 500 miles by never going over 55 MPH. It really is nice not being in a hurry and getting to watch the scenery while driving.
Keep in mind that wind is a BIG factor in your mileage and that has nothing to do with what speed you drive it. If you drive too slow, you will not be able to keep in overdrive gear and will be shifting up and down thus getting poor mileage. My coach gets its best mpg at around 63. I am learning to discern which size hill I can push over without downshifting and which ones I have to build up additional speed to make it. Every time you downshift you use a lot more gas. Last trip was 1400 mi. and my average was 7.8
2004 Adventurer W-22 8.1 35u Banks power pack, Brazel ultra trac rear trac bar, Blue Ox Alpha towing '06 HHR
I have to agree with the above posts. You will most likely get your best mileage at the speed where you kick into your highest gear plus 2 or 3 mph. I like to be just a little above so that the transmission doesn't downshift with the slightest rise in the road. For my rig this works out to about 60-61 mph.