Karl,
I was replying to Hobiephil, who is the one who suggested driving 50 mph. I would not dream of going that slow on an interstate highway. It's like being a rock in a river, and you need your emergency blinkers on. <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" />

That's why I said if the nation needs to conserve fuel, one helpful thing would be lower speed limits so EVERYBODY goes a little slower and vehicles get better gas mileage.

As it is, Rick and I seem to get significantly better mileage with both the motorhome and with our Honda Odyssey driving at 65 mph rather than 70. And a lot of other people seem to drive 65, too (maybe for the same reason), so right now 65 seems like a good compromise. <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />

By the way, with the Odyssey (without a trailer) I get close to 30 mpg. WITH a trailer and two Waves, I get more like 22 mpg.

And I have yet to figure out whether the Odyssey gets better gas mileage with or without using cruise control. I have an obsession with keeping the rpm's under 2000, and I don't know whether that really matters, either. <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" /> I need to do some more testing on my trip north.