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Post Your Van Gas Mileage Here

1837 messages,  Last post on Sep 12, 2009 at 12:19 AM

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What is this discussion about? Mazda MPV, Nissan Quest, Kia Sedona, Chrysler Town and Country, Honda Odyssey, Toyota Sienna, Van

#1737 of 1837 Re: Odyssey MPG [justaveragejoe] by user777 Aug 12, 2007 (5:12 pm)
Replying to: justaveragejoe (Aug 12, 2007 1:04 pm) or use your trip odometer (there should be an "A" and "B" trip odometer).   fill. reset the trip odometer. drive. stop for gas and refill, and divide trip odometer miles indicated by gallons filled.   fill. reset trip odometer. do it again. Replies to this message: ateixeira (Aug 13, 2007 11:29 am) hansienna (Aug 13, 2007 5:49 pm) ateixeira (Aug 14, 2007 12:38 pm) user777 (Aug 14, 2007 1:56 pm) and 1 more... marine2 (Feb 21, 2008 6:00 pm) user777 (Feb 22, 2008 3:55 am) ateixeira (Feb 22, 2008 6:03 am) hansienna (Feb 22, 2008 7:11 pm) marine2 (Feb 22, 2008 10:23 pm) and 3 more...
#1739 of 1837 Re: Odyssey MPG [user777] by ateixeira Aug 13, 2007 (11:29 am)
Replying to: user777 (Aug 12, 2007 5:12 pm) That's exactly what I do, use Trip A for gas. I reserve Trip B for trips.   Tied my record this weekend going to the beach:   30.6 mpg in a 2007 Sienna LE, close to 3000 miles on the odo. Front A/C only. Typical speeds of 55-75 mph.   It was incredible, at one point I was in the 34.x range, but I hit Route 50 and speed limits picked up, then mileage dropped. There was traffic after that.   Still, I'll take 30.6 on a trip happily, it's better than I got in my Miata.   If I were hyper-miling and patient enough, I bet I could set cruise control at 50mph and blast my record. Especially with the A/C off. Replies to this message: hansienna (Aug 13, 2007 5:49 pm) ateixeira (Aug 14, 2007 12:38 pm) user777 (Aug 14, 2007 1:56 pm) ateixeira (Aug 15, 2007 8:10 am)
#1740 of 1837 Re: Some of our vehicles have VERY accurate trip computers [user777] by hansienna Aug 13, 2007 (5:44 pm)
Replying to: user777 (Aug 07, 2007 8:35 am) My 06 Sienna LE is slightly optimistic since it is 1 to 2 % higher on a LONG round trip than manual calculation. (I only top off BEFORE the long trip and AFTER the trip and do this to check the accuracy of the trip computer).   The trip computer read 29.2 AVG MPG at the end of the last 1379 mile round trip. I put 48.2 gallons of gasoline in it which computes by calculator to 28.6 MPG.   My 2002 T&C LX had a slightly more accurate trip computer than the Sienna. The Sienna has slightly more power and gets slightly better gas mileage than the 02 T&C even though both have a 3.3L V6.   The Instantaneous MPG is a very "Nice to Have" item. Not necessary like A/C or a heater but is quite valuable to those who have a vehicle with the capability. I never missed the trip computer until I bought a vehicle that had it.
#1741 of 1837 Re: Excellent Gas Mileage with a Sienna [ateixeira] by hansienna Aug 13, 2007 (5:49 pm)
Replying to: ateixeira (Aug 13, 2007 11:29 am) My 2006 Sienna LE trip computer read 32.1 MPG after I had driven 303 miles on the last trip. It took only 8.8 gallons to fill the tank = 34.4 MPG manual calculation.   I think the trip computer is more accurate than manual calculation unless the vehicle is filled at the same gas station every time.   I reset both Trip A and Trip B before a long trip. At the end of the trip, I reset Trip B each time I get fuel but leave avg mpg because it feels so good to see the 29+ MPG and then 28+ mpg AVERAGE for weeks....even though around town I am getting only 22 to 23 MPG. Replies to this message: ateixeira (Aug 14, 2007 12:38 pm) user777 (Aug 14, 2007 1:56 pm) ateixeira (Aug 15, 2007 8:10 am)
#1742 of 1837 Re: Excellent Gas Mileage with a Sienna [hansienna] by ateixeira Aug 14, 2007 (12:38 pm)
Replying to: hansienna (Aug 13, 2007 5:49 pm) Quite possible that the trip computer is more accurate.   I've only seen very small variations from manual calculations - always less than half an MPG.
#1743 of 1837 Re: Excellent Gas Mileage with a Sienna [hansienna] by user777 Aug 14, 2007 (1:56 pm)
Replying to: hansienna (Aug 13, 2007 5:49 pm) I think the trip computer is more accurate than manual calculation unless the vehicle is filled at the same gas station every time.   I doubt that. Although the major source of error is going to be in the pump or the mathematical calculation. Still, I'd be surprised if the pump was a major source of error. More than likely the odometer / mileage measurement is off.   I mean, it's possible the unit can calculate fuel consumption fairly accurately from the duty cycle on the injectors, but really, I think the manual method is likely to be more consistent. Replies to this message: ateixeira (Aug 15, 2007 8:10 am)
#1744 of 1837 Re: Excellent Gas Mileage with a Sienna [user777] by ateixeira Aug 15, 2007 (8:10 am)
Replying to: user777 (Aug 14, 2007 1:56 pm) What can make the:      (odometer miles)/(gallons used at the pump)   strategy work better is if you keep doing it and calculate the running average.   In that case you're only going to be off by the difference in fill-up levels from the very first and very last tanks, probably a tenth of a gallon, if that.   So do 10 tankfulls (150 gallons or so) and that variation becomes insignificant.
#1745 of 1837 2007 Town and Country Touring (3.8) by neile457 Aug 23, 2007 (7:16 pm)
I have just under 800 miles - 3 fill ups 1st 14.8 mpg 2nd 16.9 mpg 3rd 20.0 mpg   The first 2 were all city, the last was about half and half.   BTW, I have a 2002 Durango with the 4.7 V8 with 196,000 miles on it currently, and my last fill up was 19 mpg - 80/20 highway mostly.
#1746 of 1837 07 Sienna LE 3.5l by ateixeira Aug 25, 2007 (3:16 pm)
Mostly around town, 23.0 mpg. My lowest MPG since the very first tank, but it was almost all in town.

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