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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

#1803 of 1837 Re: 25.1mpg [ateixeira] by hansienna Nov 11, 2008 (8:35 pm)
Replying to: ateixeira (Oct 02, 2008 10:23 am) 2006 Sienna easily gets 28 to 29 MPG on long round trips. Winter driving KILLS gas mileage. Overall average for 25,705 miles is now 23.4 MPG. Replies to this message: ateixeira (Nov 18, 2008 1:53 pm) hansienna (Nov 27, 2008 7:28 am)
#1804 of 1837 Re: 25.1mpg [hansienna] by ateixeira Nov 18, 2008 (1:53 pm)
Replying to: hansienna (Nov 11, 2008 8:35 pm) At what speeds?   I can break 30 if I stay under 55mph. Not easy around here, people tailgate you. Replies to this message: hansienna (Nov 27, 2008 7:28 am)
#1805 of 1837 Re: Good road trip gas mileage [ateixeira] by hansienna Nov 27, 2008 (7:28 am)
Replying to: ateixeira (Nov 18, 2008 1:53 pm) Speed Limit on I-15 in Utah, Nevada, and California is 75 MPH in most of Utah, and 70 MPH on I-15 in Nevada and California (except for construction areas). Interstate 15 in Arizona in the Virgin River Gorge in Northwest Arizona is 55 MPH.   We set the Sienna Cruise between 72 and 77 MPH on these trips except for 55 MPH through the Virgin River Gorge.   People still tailgate when I drive at or above the speed limits in all 4 states but I am always in the right lane except when passing trucks on the long uphill stretches.
#1806 of 1837 08 Odyssey with VCM by desertkev Nov 28, 2008 (7:26 am)
I just got home from a road trip, avg 70 mph with cruise control on....a few slow downs from traffic. MPG 27 .
#1807 of 1837 07 Gr Caravan 3.8L by jona57 Jan 07, 2009 (6:14 am)
Lease ending on this van & I've kept close records. Ave in city 17-20mpg (smooth driving-no jackrabbit starts), ave highway 70-75mph runs 23-5mpg and 2-3 mpg higher at 55-60mph. BTW these are ACTUAL ave gas tank fill-up numbers over last 15K miles under all conditions (i.e. not downwind, downhill, drafting 18 wheelers, etc.). BTW- trip computers on most vehicles read high mpg. With recent spike in gas prices this was active topic of discussion at various Holiday parties. ALL claimed their vehicles' computers OVERstated actual mpg in real-world driving (inc. GM, Ford, Toyota, Honda, Chrysler Hyundai, Nissan).   New model with bigger, more powerful 4L engine may do a bit better according to EPA, and at least 1 car rag   http://www.motortrend.com/roadtests/oneyear/112_0812_2008_chrysler_town_and_coun- try_update_2/index.html Replies to this message: ateixeira (Jan 09, 2009 11:57 am)
#1808 of 1837 Re: 07 Gr Caravan 3.8L [jona57] by ateixeira Jan 09, 2009 (11:57 am)
Replying to: jona57 (Jan 07, 2009 6:14 am) On my Sienna, I've calculated both on several occasions, and perhaps surprisingly mine is very accurate, usually within 0.1 mpg, and not always high, either.
#1809 of 1837 Drop in Fuel Efficiency for 06 Odyessy by BC_ATL Jan 12, 2009 (2:13 pm)
I've had the car since new and regularly serviced by the dealer. Last month I noticed a sudden drop in fuel efficiency. I used to get 520+ miles on a tank now I can barely get 300!!   I just had the car serviced for the 60k interval but the efficiency has not imrpoved. I keep the tires inflated to the reco level and only use gas from BP.   The dealer said they can run a test but it would cost $200+ and take several days. They also said sometime the gas station changes their supply to an inferior quality.   Has anyone else had a similar experience or knows what I can do?   Thanks Replies to this message: ivan_99 (Jan 13, 2009 8:25 am) BC_ATL (Jan 13, 2009 3:19 pm) ateixeira (Jan 13, 2009 11:45 am)
#1810 of 1837 Re: Drop in Fuel Efficiency for 06 Odyessy [BC_ATL] by ivan_99 Jan 13, 2009 (8:25 am)
Replying to: BC_ATL (Jan 12, 2009 2:13 pm) was that just the one tank? or was it repeated fill-ups that returned that mileage.   does the van perform normally? Is it sluggish, jerking, smoking, etc?   Did you run the tank dry recently (gunked injectors) ?   I'm assuming you're driving the same as before...i.e. you haven't started idling for an hour to pick up kids...or sitting idling waiting for bank/fast food/medication -- or anything else that is a convenience.   Inferior gas? not sure a station would want to switch to that...   Not being a mechanic...I'd initially think it's filters (air)...I'd start checking the cheapest thing first...   Sounds odd for an 06... Replies to this message: BC_ATL (Jan 13, 2009 3:19 pm)
#1811 of 1837 Re: Drop in Fuel Efficiency for 06 Odyessy [BC_ATL] by ateixeira Jan 13, 2009 (11:45 am)
Replying to: BC_ATL (Jan 12, 2009 2:13 pm) Atl = Atlanta?   It's not *that* cold there, is it? That could certainly explain a drop of 2-3 mpg or so, especially with short trips.   My trip computer shows the average mileage drops for the first 3-4 miles or so of each trip I take now (it's been sub-freezing in the AM lately). Then it'll go back up once the engine is warm.   So short trips could kill mileage, if the engine never reaches operating temps.   Other questions - do you still see the ECO light come on when you coast to a stop, if you have VCM?
#1812 of 1837 Re: Drop in Fuel Efficiency for 06 Odyessy [ivan_99] by BC_ATL Jan 13, 2009 (3:19 pm)
Replying to: ivan_99 (Jan 13, 2009 8:25 am) I had the car serviced last week and had the filters changed. I've checked the tires too and all is okay with them.   I'm running my own test using another brand of gas and depending upon what happens I may go back to the dealer for a full diagnostics. I found some info on www.fueleconomy.gov that says it could be some things not normally checked by a standard service.

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