Our on board computer shows 17.3 average over the two and a half years we have had the van. I always thought it would improve after it was broken in, but it really hasn't improved much. This 17.3 average includes several trips of several hundred miles each too! I know on the highway it averages 22-26 mpg,basically the 26 would be at around 55 mph, and the 22 would be at around 75 mph, and this is an LE with the 16 inch tires and FWD only. We have had several minivans, Ford Aerostars and Pontiac Montanas, two of each, that all averaged around 19-20 mpg,
but those Ford engines were 10% smaller, and all the vehicles probably weighted 10% less. And this van does about 50% suburban driving and 50% highway.
Don't forget-the size of the Sienna and the Odyssey make them no longer "minivans". These things are just about the size of a full sized van now and over 200 horsepower.
Actually, the 30.2 included one trip west on I-40 at Old Fort Mountain. It also included NC 226 mileage and more I40 mileage in NC and I85/26 mileage in SC. Indeed it was 85% highway. However, it seems to totally fly in the face of the sorry mpg claims in this thread - those claims are indeed difficult to believe - maybe for all stop and go at lights block to block in a city? Otherwise, I cannot believe them. Any gasoline leaks? Anyone syphoning out the gas with this $3 + per gallon? My 5.7 Tundra does much better than these Sienna claims!
Actually, the Sienna is about 1 MPG better than my Pathfinder. The Pathfinder is 4 WD, but the engine is 10% smaller. The weights are about the same. I seem to be getting the same, or only slightly below, what most people are getting. I am relying on the computer. I rarely fill it up twice in a row since it is my wifes car. She would never remember to reset the trip odometer, so that's out too. She doesn't even see a reason to wash it, "It's only going to get dirty again".
I believe the 2004 is 5 spd also. I will be getting new tires very soon,maybe this will help. The Dunlops have lasted only 28,000 miles. I undertsand many people had this problem with the Dunlops too.
Who knows, Toyota just replaced the coolant sensor,coolant, thermostat and an air/fuel sensor under warranty. Maybe this will help.
Something that nobody ever figures in there gas mileage is this... When you start the car the car uses more gas for at least the first 3 min when cold... so if all you do is short trips your milage will suck...my sequoia gets 13.6 mpg when my wife drives it to work and back for a week... when i drive it my 20 mile trip it gets 17.4 mpg... still crappy but a significant improvement anyway.. im now buying a seinna and getting rid of the sequoia ... because gas mileage AND the features in the seinna are way better
You actually have a case here under "lemon law" statutes in most states...
50% of the eMPG is beyond acceptable, especially when those figures are federally regulated. If you can clearly show; driving miles, conditions and articulate your driving habits, and you have taken it back to them 3x for repair and they still can't address this, then you have a case.
I am a bit of a "lead-foot" (comes from my EVOC driver training) and on my 2001 Sienna (and not the best maint), I still today average 365 - 385 miles per fill-up (avg 16.8 - 17.5 gals). This is even with my high acceleration type driving and in the horrendous stop-and-go traffic of the DC Metro area. So on this 6 yo Sienna with at best an 80% service record and essntially 50/50 city-highway driving, I still get an avg of 19 - 22 MPG. When I go on long highway trips, I even get about 25MPG.
So you really have an issue here if that is the MPG you are getting, but like someone else noted, don't trust the computer to give you your MPG, do a tank fill / milage comparison. I always reset my "A Trip Meter" to 0 whenever I refuel. I trust the milage more than my gas gauge since the last 1/4 tank seems to go from 1/4 to E in 30 miles.
Go to the County or State BBB, lookup the "Lemon Laws" in your state, and possibly get legal counsel... You may have a real case.
Well, here it is----we just took another trip and one-way got 20MPG, and the other way got 23MPG-----we have no case now! Around town we still average 12-13MPG----I think this is what the vehicle is going to get with nothing anything we can do. We do have friends driving Siennas getting (they swear) 20 MPG, but after careful consideration of the facts(4255 lb.s), I think we have what we have. I do wish that Toyota would have posted more accurate mileage spec.s on the window sticker, and I still believe our odometer/mileage calculations are off because; on our last trip my odometer would read 9.3 miles travelled for every ten mile-markers---if those things are accurate, then my odometer and mileage calculations are off by 7%. The XLE that we bought came with 225-60/17 tires, and the others come with 215-65/16 tires putting the mileage closer to what the mile markers would read.
I think that is good news for XLE owners; most people complained low mpg are owned XLE or AWD Sienna. If the odometer is off on XLE (17 inch wheel) I just wonder why Toyota did not correct the problem.
So what you are finding bad mpg due to:
1-Odometer is off (on 17 inch wheel). Perhaps Toyota is using same odometer for CE, LE (16 inch wheel) and XLE.
2-More weight on XLE than LE (around 100lbs).
3-Perhaps, 17 inch wheel is taller than 16 inch wheel this make car is higher and less aerodynamics??
So the main problem is the odometer is OFF on XLE (17 inch wheels set), that make the computer display MPG is totally off. However, your van actually MPG is very close with Highway EPA rating (26 MPG).
For the City MPG, it's very hard to say because some city has too many stop lights and some less.
I still wonder if your car is really has low MPG will smog test show rich fuel mixture??
We just purchase a 2005 Limited over the weekend. On the drive back my Volvo S80 averaged 27-28 mpg the van only 20.5. I am with everyone else I don't understand the sticker states 19-26 so with the mpg so low it doesn't seem correct. It has actually dropped to 17-18 in town. My wife didn't use the laser cruise on the way home so no go on that issue. I will have my dealer check it out soon.
Honestly... you have no case against anyone... Toyota does not make up the MPG rating.... I know you know this... What is your basis for this lawsuit... bad gas mileage??? good luck dude. I had an accord Hybrid that sticker said 36 mpg... best i ever did was 24mpg... that is way off...not once did I try and sue someone.
Bottom line is you should have taken the thing for a long test drive and watched the instant mpg and the average... not a perfect calc but better than complaining after the fact...
want my sequoia... ill trade you... take my 12mpg
as far as calibration goes... by law toyota only needs to calibrate the speedometer for 1 version... the base model... every other model is a upgrade so your milage will be off quite a bit... I just had this issue with Honda who is being sued for odometer fraud...huge lawsuit.
so if a base seinna has 15 inch wheels ... and yours are 17" (assuming larger size overall) you will get less miles vs the base seinna... maybe way less (12%)
I wonder what the new 3.5 gets????
BTW... Im getting rid of the sequoia for a seinna xle limited now... a year with this 07 limited is enough... cant believe the sienna has a way better feature package and is more refined than a $51000 suv... how silly is that
Obviously i failed to read the rest of the posts after getting upset at another frivolous lawsuit... thats all we need ... I hate this sue everyone mentality
Our on board computer shows 17.3 average over the two and a half years we have had the van. I always thought it would improve after it was broken in, but it really hasn't improved much. This 17.3 average includes several trips of several hundred miles each too! I know on the highway it averages 22-26 mpg,basically the 26 would be at around 55 mph, and the 22 would be at around 75 mph, and this is an LE with the 16 inch tires and FWD only. We have had several minivans, Ford Aerostars and Pontiac Montanas, two of each, that all averaged around 19-20 mpg,
but those Ford engines were 10% smaller, and all the vehicles probably weighted 10% less. And this van does about 50% suburban driving and 50% highway.
Don't forget-the size of the Sienna and the Odyssey make them no longer "minivans". These things are just about the size of a full sized van now and over 200 horsepower.
Have you try this (read the 1st post with the link) this will open more air to the intake.
Re: Sienna Bad MPG
Re: Sienna Bad MPG
I think that is good news for XLE owners; most people complained low mpg are owned XLE or AWD Sienna. If the odometer is off on XLE (17 inch wheel) I just wonder why Toyota did not correct the problem.
OFF on XLE (17 inch wheels set), that make the computer display MPG is totally off. However, your van actually MPG is very close with Highway EPA rating (26 MPG).
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