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Toyota Sienna Gas Mileage



  • ateixeiraateixeira Posts: 72,587
    You actually have to be in Park. That confused me the first couple of times. Make sure you're in Park, then it will reset.
  • caravan2caravan2 Posts: 198
    I tried it multiple times while not in park and it works every time.
  • ateixeiraateixeira Posts: 72,587
    Really? Not on my 2007 model. Maybe they changed that for certain model years? Mine absolutely will not work unless it's in Park, even in Drive at 0 mph it fails.
  • metmdxmetmdx Posts: 265
    I guess I have to eat some of my own crow here. I've had '08 LTD AWD for about a month now (1,200 miles) and the best I can get is about 14.5mpg 50/50 hwy-local.
    My previous vehicle was rated 24/18 under the 'old' system and I consistently got 20.2 +/- driving the exact same routes. Like a fine wine, I'm hoping it gets better with age :confuse: Probably have to have dealer 'flash' computer to see if that helps.

    Otherwise great vehicle :shades:

  • I am happy with the gas mileage - after 6 fillups and 2,000 miles, I am getting 19.5mpg, mostly local stop-n-go traffic. I have only 2 complains about the minivan now, minor, really - (1) The laser cruise control makes me follow the car ahead with a 50' gap - too large for Dallas traffic - there is no way for me to reduce it. Causes everybody else to cut in front of me, slowing me down even more, unless I step on the gas. (2) The navigation system is a joke, or I am an idiot (the system is not sufficiently idiot-proofed)
  • Hi. I just got back from the N. Cal coast. Just under 1,200 miles. Round trip from just South of Seattle. Started in freezing weather, stayed that way a good portion down on I-5. Warm on the coast, in comparison. Mileage was not so good the first part of the drive, 150 miles. 19 mpg. My lowest ever!! I did use the rear air-conditioner as not an air conditioner, but for heat. First time. Cranked up pretty good. Long story, but I was feeling a bit cold and stiff.
    Anyway, the mileage just shot up after that. As high as 30. That's the best I've ever got. Maybe Oregon had different blend, as that's where I kept stopping and topping off. Great mileage. And, the vehicle didn't seem 'too big' to me even one time. That has been an ongoing issue with me. It felt just fine the entire trip. Glad I went. Redwoods looked super (still), and Klamath Overlook was warm and calm enough to get a suntan!! Clear as a bell, too. Cold overnight, though.
    2006 CE, Silver Pine Mica 24,500 trouble-free miles.
  • ateixeiraateixeira Posts: 72,587
    I believe the distance for the laser cruise control is adjustable (someone please correct me if I'm wrong). Check in the owners manual for programming instructions.

    FWIW, people still complain that even the shortest distance leaves too much space so they get cut off often.

    The NAV system in the Solara is supposedly better. People have posted instructions on-line as to how to hack it so that you can program it while the van is in motion.

    Sounds unsafe, but when you have someone in the passenger seat, it's perfectly safe, and you should not have to stop for them to enter a new destination.
  • ateixeiraateixeira Posts: 72,587
    Yeah, I did a search and there are 3 settings for the following distance, check your owner's manual to see how to program it. I bet it defaults to the longest (safest?) distance.
  • oekooeko Posts: 1

    I just bought a 08 LTD AWD and also only get 14.5. How can they advertise 16-21? I might as well have bought an SUV. I am having the AWD checked out to make sure its not always engaged. Any thoughts?

  • ateixeiraateixeira Posts: 72,587
    Are you taking only short drives? When it's cold the engine efficiency is very poor. If your trips are often under 5 miles that would cause a big drop.

    Yours is the worst I've heard of, though. Even in this snow, I'm getting 24.9mpg in the suburbs (FWD, though).

    Edit: if it makes you feel any better, my FWD struggled just to get up my driveway, and we only got 2" of snow. All-season tires that are new, too.
  • s4f4ms4f4m Posts: 19

    Isn't the AWD on ALL THE TIME? Just my observation. I did not notice any mention of on-demand AWD, real-time AWD, or AWD when tire slip is noticed.
  • I have a 99 sienna and with plus I get 23 mpg I drive 90 miles round trip on freeway and in town. I would proble get better but I have a flowmaster exhaust on it and it has 210000 miles on it best car ever owned :shades:
  • caazcaaz Posts: 209
    Guys.... i see we have a bunch of lead footers out there. Start coasting the second you see the light turn yellow, avoid quick off the lines..and be willing to use that cruise as much as possible. Went on a trip, Unloaded, no passengers just me. 65mph all the way. Results, 33.6 mpg 2006 Sienna LE Package #4 has traction & stability control. With those 2 items you dont need an AWD. which btw will use more gas period. My other last small car was a 2004 Civic hybrid, learning how to squueze all the mpg i could is very useful in driving my other cars..Go to Toyota Camry section and read my driving log there.. My last trip from So.Cal to Phoenix @ 65 mph was 40.058 mpg..In my 2003 CAMRY Le 4cyl. Good Luck and drive easier


    p.s. When my wife drives the Sienna, which is always....even pulling over on the street to talk to girlfriends with the motor running..when i check her mpg its between 20 & 21 always...and she doesnt pay attention to any of that.So i know you can do better... Good Luck
  • ateixeiraateixeira Posts: 72,587
    I'm with you, Caaz. My record is 34mpg, too. I do the same thing - coast to lights and stop signs. Any use of the brakes is energy you wasted, think about it! Actually is wastes gas and the brake pads.

    It's gotten very cold so my mileage has taken a hit, but I can still squeeze out 26-28mpg on an average tank.

    Even in pure city driving I can eek out 21mpg.
  • Hi I have the same problem, I have just bought an 08 awd XLE limited and the best I'm getting is 14 mpg's. I coast going downhill and don't break often, I have another car which I get 23 mpg but it's listed as 18-24, I drive it the same way as I drive the sienna. The sienna is just two weeks old, is the mileage going to get any better? did you get yours fixed? Thanks!
  • gmuigmui Posts: 10
    I just picked up my new 2008 AWD Sienna LE last week. I've put a little more than 100 miles on the car and the gas gauge is 1/2 empty. The on board computer is telling me I'm getting 14 mpg like few other AWD Sienna owners have posted.

    This is alarming to me because I brought this car to replace my old '97 Chrysler Town & Country LXI AWD minivan. AWD to AWD, I normally get about 18-19 mpg with my old Chrysler; same style of driving, same weather, same gas.

    What's up with the Toyota AWD?!

    Can other AWD Sienna drivers share their experience?

    So far I've only seen people post AWD gas milages in the 14 mpg range. I'm hoping this some how improves and quickly...

  • Hi, I just talked to the service guy in Toyota North, NY where I bought the car and told me it is not unusual to get this mileage for the AWD and for me to wait til the engine breaks in (around 1200 miles he said)

    NOT unusual?! 14 miles per gallon?! my big SUV makes 15 miles per gallon that's why I traded it in, and they shouldn't advertise 21 MPG's if it's not true. Anyways I'm contacting toyota warranty services and I'm posting a complaint about the vehicle I got, I'll post what they say.....
  • gmuigmui Posts: 10
    My dealer is telling me to wait till after the first old change in 5,000 miles. I never had a car that requires that kind of break-in.

    Also, what I've notice is this car doesn't know how to coast. I normally coast to stop signs and lights, but as soon as I let go of the gas, this thing slows down like a rock.

    I have a small hill in my neighborhood, just about 3 - 4 blocks long. Normally, I would take my foot off the gas before I start down the hill when I'm going ~25 and by the time I get to the bottom I would be doing 40 (without gasing at all). With the AWD Sienna, I find I need to gas pretty much the whole way and at the bottom, I'm at 25.

    Has anyone notice the same?
  • gmuigmui Posts: 10
    I wish I could get even 18mpg from my new 2008 sienna AWD LE.

    I'm just seeing 14 mpg with 80% highway driving. My full size chevy conversion van gives me 16-17 mpg even though it has a monster 5.7 liter V8. How could this little minivan do worst than that is beyond me?!
  • gmuigmui Posts: 10
    Is yours a AWD sienna? If so, what year is yours?

    I have a new 2008 AWD and I'm only seeing 13-14mpg and this is worrying me...
  • ateixeiraateixeira Posts: 72,587
    Both axles are engaged so you'll have double the drag, though I'm surprised that the difference is that big. My FWD coasts quite a while before it stops, that's actually how I stretch my gas mileage.
  • gmuigmui Posts: 10
    I'm surprise myself as well.

    My other minivan is the AWD Chrysler Town & Country '97 and it doesn't behave this way. It knows how to coast and even though it's old and uses older technology; I average 18-19mpg on it even now.

    I don't know if this is a transmission problem with it not clutching in time or what; but given my other AWD Chrysler van, I don't believe the AWD in the Sienna is suppose to kill the gas milage like it does.

    Does anyone out there have a AWD Sienna with better than 14 mpg ?!

    Please speak up and give us some hope here...
  • avery1avery1 Posts: 373
    This is shocking. Is anyone getting decent mileage with an AWD Sienna? I was set to get an AWD 2006 when I was shopping but the drive flat tires and their cost dissuaded me. I've gotten about 26 hwy and 19 city with my FWD 2006. I have noticed that it seems to gear down if I touch the brakes at all while going down hill.
  • gmuigmui Posts: 10
    consider yourself very fortunate that you didn't choose the AWD...

    My dealer just left me a message that he is "willing" to let me trade my AWD Sienna for a FWD LE. However, I would have to pay MSRP on the car and then tax, docs and destination charges again.

    Oh, for a mere additional $8000+ dollars, I can swap my 6 day old AWD Sienna with a 150 miles on the odometer for a LE model that's worth $3500 less. I can't believe how chartiable my dealer is. Also, he only left me a voice mail after I called him 15 times over two days and he never picked up once.

    James Toyota in NJ - don't ever go there!
  • ateixeiraateixeira Posts: 72,587
    Yes, it has grade logic in the transmission and will do that intentionally.

    It's for descending a long grade, it will downshift to save you from overheating the brakes going down a tall mountain.

    I guess don't tap the brakes else it may stop sooner than you want it to.

    What I've observed in about 8 months of driving my FWD is that is likes long drives, highways and country roads, and speeds between 35 and about 65 or so. Much slower or faster and mileage drops. Short trips also hurts mileage. A/C has no noticeable effect, in fact my record tank was with the A/C on.
  • avery1avery1 Posts: 373
    I'm sure your mileage will go up over time and as the outside temps warm up. I know that when I was looking people were getting almost as much for used Siennas as the new ones cost so you might be better off selling it yourself.
  • hause7hause7 Posts: 153
    Our 04 Sienna Limited AWD with 73,500 miles has averaged about 16.5 mpg over the whole time we have owned it. We have once gotten 22 on the freeway with cruise set at 70. Gas mileage is the only reason we want to trade our 04 Sienna in for an 08 Sienna. If you don't need AWD then you should get a FWD it gets way better gas mileage. what model do you drive, LE AWD, XLE AWD, or a Limited AWD?
  • ateixeiraateixeira Posts: 72,587
    FWIW, I have heard theories that the CE and LE models get better mileage than their loaded cousins.

    I'm not sure if I agree, beyond a tiny bit of extra weight causing a very minute difference, but my LE has been better than most, so who knows? :confuse:
  • gmuigmui Posts: 10
    I have the LE model.

    Did you also experience very poor gas mileage in the beginning like what I'm seeing now? If so at what point did you obtain improve mileage?

    What's the mix of highway/city driving you did when you got your 16.5 mpg.
  • gmuigmui Posts: 10
    Thanks for that tip for selling the Sienna, I just hope AWD Sienna are worth as much as the FWD models...

    I have to look at what my 200 mile use Sienna AWD is worth...
This discussion has been closed.