I went to Michigan which is 310 Miles away from me at night. I was driving a constant 70mph on the highway on cruise, I was averaging 45/47mpg. 475 Miles on a full tank with half a gallon left. Not possible to get 1000 miles on a full tank, maybe if your driving downhill.
I saw you post in VABeachPrius' 1000-mile tank thread, so I'll assume you're referring to that. You are correct; there is no way you'll come close to that on the highway. He is doing it with almost exclusively city driving and extensive use of "hypermiling" techniques.
If you come to our ChicagoPriusGroup outreach this Saturday, I can show you how VABeachPrius is doing what he is. Wayne
<div class='quotetop'>QUOTE(tomzgod @ Jun 2 2007, 11:39 PM) [snapback]454225[/snapback]</div> How far is Michigan from you during daylight?
<div class='quotetop'>QUOTE(JimN @ Jun 3 2007, 02:47 PM) [snapback]454545[/snapback]</div> I remember when I was growing up in Jersey (before the NJ Turnpike and GS Parkway existed) it took just over an hour to go from the Newark suburbs to southern Jersey (Manasquan) in the winter and about half a day in the summer. Never thought to check the day/night difference.
Along some sections of the I-15 my old (1988) Camry would just refuse to run without overheating during the day. Same thing in Death Valley. That makes it take a looonog time to get places in the day.
<div class='quotetop'>QUOTE(tomzgod @ Jun 2 2007, 11:39 PM) [snapback]454225[/snapback]</div> At 70 mph, you got pretty much what is expected: Bob Wilson
Coincidentally, I just got Wayne Brown's Palm-based MPG simulator, as described here. I plugged some numbers into it for your trip, making some assumptions (that may not be valid) about your driving conditions. The assumptions: 60F ambient temperature (for night time driving) Chicago's elevation (as reported by the simulator) of 596' 70% humidity (again, for night driving) Barometric pressure of 30.00 Load of 200# (passengers and cargo) No AC No winds E10 as fuel Smooth, dry pavement Goodyear Integrity tires inflated to 44 front, 42 back The simulator also assumes level terrain. (It doesn't look like that can be changed.) The result: 46.57 MPG, remarkably consistent with your results. Out of curiosity I analyzed each of these changes individually: 50F ambient: 44.91 MPG 50% humidity: 46.54 MPG Barometric pressure of 29.8: 46.75 MPG 400# load: 46.04 MPG 10 MPH head wind: 39.75 MPG 10 MPH cross wind: 39.83 MPG 10 MPH tail wind: 54.71 MPG Summer fuel, no ethanol: 48.26 MPG Light rain: 42.16 MPG Goodyear Integrities inflated to 38/36: 45.19 MPG If you can give me these variables specific to your drive, I can plug them in.
<div class='quotetop'>QUOTE(JimboK @ Jun 6 2007, 08:39 AM) [snapback]456477[/snapback]</div> Try it with a quartering headwind and see how the numbers drop...it's really dramatic at those speeds. Also, show him how much the mpg improves with a speed drop to 65mph. (sorry, feeling too lazy to drag my pda out to do this myself...I've paid my dues in the past posting stuff just like this, it's your turn to do it while you're still playing w/ your new toy!)
<div class='quotetop'>QUOTE(efusco @ Jun 6 2007, 09:43 AM) [snapback]456480[/snapback]</div> Yeah, Wayne and I have had some dialog about it. As I'm sure you know, he says his observations show that winds in the 35-39 degree region relative to vehicle direction have the most effect. Not a problem playing on behalf of others. You've paid your PC dues many times over with this and in many other ways! Of course now others can have their own toy for just $22. Anyway, Tomzgod, dropping the speed in the base scenario returns the following: 65 MPH: 49.87 MPG. 60 MPH: 53.90 MPG 55 MPH: 57.08 MPG
