After having some more issues with our 15year old car, we may be in the market for a new or lightly used car. We were looking at the Honda Fit the newest gen looks. How Many Miles Per Gallon Does Your Motorhome Get by Jan Yelm, WA. GSA has adjusted all POV mileage reimbursement rates effective January 1, 2017. How Many Miles Per Gallon Does Your Motorhome Get Yelm, WA. Hi,I asked a while ago about what motorhomes get the best mpg. Now I am trying again to get more specific information. Can people just please reply to this post with what kind of motorhome, length, motor, tranny their mpg As much detail as you want to give. Please thanks,OK Jan your wish is my command. If anyone reading this would like to share the information on how many miles per gallon their Motorhome gets they can add the information by clicking on the Click Here To Post Comments link located near the bottom of this page. Please feel free to also tell us any tips and tricks you use to increase your motorhomes fuel mileage. Leave your RV repair bills to usGood Sam Extended Service Plan. Happy RVing RVing Al. P. S. Did You Know that you can build your own Web Page on Everything About RVing Just Tell Us Why You Love RVing, Tell Us About Your Favorite Camping Or RVing Destination or Share a Funny RVing Story With Us. Program Car Gas Milage' title='Program Car Gas Milage' />351M Gas milage 1973 1979 F100 Larger FSeries Trucks. Mac Os X Update Git Commit.