are you useing e-85 fuel that will get your mileage low and of course it helps the emmissions (how i don't know less mpg =more fuel usage)
it does not play well with mpg.
Ok, I bought a brand new '08 Sienna Limited w/AWD- Have 5100 miles on it now, and cannot get better than 13.2 mpg. It has 17" Bridgestone Run Flat tires. Dealer has checked it twice, and they claim all is normal. I don't use this as a family van. This is my work vehicle. I do carry equipment around: 275 lbs. all the time. (Weighed at local propane dealer day of purchase, and 3 days later after vehicle was loaded.) This weight is equivalent to 2 adult passangers. I find this mileage unacceptable. Have owned Jeep Grand Cherokees, Chrysler Town & Countrys, etc. with the same load, and always got 17+ mpg. Spoke with a neighbor who traded in a BMW X5 that he filled up twice a week with premium fuel. He now fills up his exact Sienna as mine, 3 times a week w/regular unleaded, yet it is costing him more per week in fuel costs than in his previous BMW. The reason I bought this van was because of it's AWD. Next problem is the run flats, which I have been advised will last maybe 12-15K before they need to be replaced. NEVER NEVER NEVER will I own a Toyota again.
Get a 2008 Scion X box. Plenty of utility. Fits 4 gorillas. Gets an honest no bs 25mpg. I have reached 27.8 doing 72mph on the highway.
Price.. under 20K
Ok, I bought a brand new '08 Sienna Limited w/AWD- Have 5100 miles on it now, and cannot get better than 13.2 mpg. It has 17" Bridgestone Run Flat tires. Dealer has checked it twice, and they claim all is normal. I don't use this as a family van. This is my work vehicle. I do carry equipment around: 275 lbs. all the time. (Weighed at local propane dealer day of purchase, and 3 days later after vehicle was loaded.) This weight is equivalent to 2 adult passangers. I find this mileage unacceptable. Have owned Jeep Grand Cherokees, Chrysler Town & Countrys, etc. with the same load, and always got 17+ mpg. Spoke with a neighbor who traded in a BMW X5 that he filled up twice a week with premium fuel. He now fills up his exact Sienna as mine, 3 times a week w/regular unleaded, yet it is costing him more per week in fuel costs than in his previous BMW. The reason I bought this van was because of it's AWD. Next problem is the run flats, which I have been advised will last maybe 12-15K before they need to be replaced. NEVER NEVER NEVER will I own a Toyota again.
Run Flat tires is a NO NO. They are no great thing. Running one tire flat for 50 miles @50MPH( as recommended when yu encounter a flat) will destroy the tire to begin with. They have poor traction and high rolling resistance/drag And all Sienna 4WD's are historiclly pigs on Fuel. Has always been that way. Run flat tires are not as serviceable like regular tires are.
Yes Runflats are notorious for wearing out rather fast. And are expensive to replace. Usually special order.
BTW, E85 [I]increases[/I] fuel consumption. This is well documented.
Yu were better off getting a FWD Sienna. Yu just picked the wrong model Toyota. There are many other better Toyotas for MPG. The 4WD Sienna was the worst pick. I know several people who own them. And, they got rid of the Run Flat tires!
Last edited by LifeTech; 06-06-2008 at 01:41 PM.
Reason: spel
Have an 06 CE and my lowest MPG has been slightly less than 24MPG, calculated. I get receipts for every fill up, record the odo, and usually calculate MPGs - sorta fanatical! My best MPGs have been over 30 and my usual is 26/27. I have noticed that the 30 has not been achieved since the 10% Ethanol is in all regular gas mixtures.
Really can't believe any Sienna would get less than 20 MPGs, but of course I've only owned the one 06 CE.
My 07 DC, 5.7, 4X4, longbed Tundra gets as high as 18 with no load and 10/11 towing a TT.
I have the same vehicle, an 08 AWD LTD with run flats. I'm getting about 19 mpg running about 75 on ave with the A/C on. Around town it's slightly less, but nowhere near 14. If I stay around 60-65, I can get closer to 22. I only have about 1000 miles on mine and did install a K&N filter in the first week I had it. The AWDs are a rougher ride with less expected limeage over the others, but I got it for the wife so she feels safer in the bad weather as well as all the other options that come std on the AWD LTD.
Run Flat tires is a NO NO. They are no great thing. Running one tire flat for 50 miles @50MPH( as recommended when yu encounter a flat) will destroy the tire to begin with. They have poor traction and high rolling resistance/drag And all Sienna 4WD's are historiclly pigs on Fuel. Has always been that way. Run flat tires are not as serviceable like regular tires are.
Yes Runflats are notorious for wearing out rather fast. And are expensive to replace. Usually special order.
BTW, E85 [I]increases[/i] fuel consumption. This is well documented.
Yu were better off getting a FWD Sienna. Yu just picked the wrong model Toyota. There are many other better Toyotas for MPG. The 4WD Sienna was the worst pick. I know several people who own them. And, they got rid of the Run Flat tires!
Our 06 Limited AWD averages about 16mpg per tank. Driving is a mixture of city and highway. This is normal to me. Nothing to complain about.
The Sienna did not come with a spare so the run flats serve a good purpose for us. When the pressure goes down the sensor comes on telling us to check it out. If we are out in the boon docks we have 50miles to get somewhere to take care of it instead of trying to wait for a tow.
Also, there was an uneven wear recall on our run flats. The dealer replaced them with a new set at 30k miles. I figure I'll have to replace them again at 60k which will be the first time I will have to buy tires for this thing.
Based on odometer readings alone and amount of fuel pumped over the last 3 fill-ups, our Sienna 2001 XLE gets about 22.2 mpg and the Sienna 2002 Symphony gets around 23.6 mpg combined city and hwy, although probably distance wise, most of it is hwy, but time wise, about 50-50 city-hwy. To calibrate the hwy mileage on our last road trip, we drove up from near San Jose, CA to Richmond, British Columbia. That was 1015 miles according to the odometer, and the GPS said it was 1009 miles. Not too bad in terms of error. If I trust the GPS unit more, and averaging 36.25 gallons total for one way, that's 27.8 mpg hwy for the Sienna 2002. That's not shabby considering the section of snow we had to get through from Salem to Portland, and speeding along at 70+ mph.
I recall getting 28.5+ mpg on a summer trip once with A/C on most of the time, but we took our time and averaged only 62 mph at just a little above 2000 rpm. There appears to be a sweet spot for mileage, RPM and relative wind speed.
But I do some basic things to make sure I maintain good mileage:
a) change 5W30 motor oil and automatic transmission fluid regularly
b) change air filter regularly and clean out throttle body of gunk buildup
c) check and change spark plugs and ignition wires regularly
d) keep tires inflated to proper tire recommended pressure
e) use detergent gasoline and add FI cleaner additive regularly
f) drive usually with over-drive on and maintain engine RPM at about 2200 rpm
g) engage cruise control frequently - it's more steady than my foot
h) drive on the right and leave lots of distance so I rarely need to use my brakes.
I have 2006 Sienna with 16 inch wheels. From day one it had a bad mileage in town. About 12 mpg according to the computer (cannot tell actual use because I've never measured). I blamed it on my wife's driving habits but also I think this car eats a lot of gas due to fast acceleration. In either case I dont complain because I live in a small town and gas is not a big part of my bill. Also when I go out of town on long trips gas mileage seems pretty good.
We have an 05 Sienna LE Last June while on Vacation in Colorado. I drove From Durango, CO to Colby, KS 527 miles on a tank of gas. The average was 30.5 miles to the gallon. I was amazed. That was driving up & down mountain grades. I normally get 20-22 MPG in the city and about 27 MPG on the Highway (80 miles per hour) I have the 16" rims. I'm very pleased with the fuel mileage I get. I always check the mileage verses the gallons of gas as well as the trip meter.
Re: Sienna Bad MPG
Linear Mode
