Forum Discussion
ArchHoagland
Oct 16, 2021Explorer
I was going across The Bonneville Salt Flats on I 80 one time. It is very flat and there was no wind that morning. About 50 miles of flat, straight road.
I experimented with going 65 MPH for five miles and then 55 MPH for five miles. And then 65 MPH for five miles and then 55 MPH for five miles again.
My instantaneous MPG readout stayed pretty much the same for both speeds so I'm in the camp that says it doesn't make that much difference.
I've averaged 7.1 MPG over 95,000 miles. I recorded ever gallon of gas I put in the RV over the past 14 years. I don't care what it costs and will go to the gas station that is empty as opposed to going in the cheap places where I stand a chance of being hit by some nimrod.
I experimented with going 65 MPH for five miles and then 55 MPH for five miles. And then 65 MPH for five miles and then 55 MPH for five miles again.
My instantaneous MPG readout stayed pretty much the same for both speeds so I'm in the camp that says it doesn't make that much difference.
I've averaged 7.1 MPG over 95,000 miles. I recorded ever gallon of gas I put in the RV over the past 14 years. I don't care what it costs and will go to the gas station that is empty as opposed to going in the cheap places where I stand a chance of being hit by some nimrod.
About Motorhome Group
38,756 PostsLatest Activity: Oct 31, 2025