then the xD with the same exact motor? Or is scion just underating the xD?

I wish I had that 1.8L Corolla engine.
xD should be capable of same mpg as Corolla and should be faster given its weight.

Corolla uses a different rating scale. No real difference

awww i see

My school of thought was that becuse toyota is the premire brand they wouldnt want a scion out shining it!

The gearing could be different too.

No the Corollas have always seemed to be overrated. My 03 Corolla used to only get 26-28 mpg when it was rated at 28-33 mpg. I'm getting 32 easy on my xD with that same rating.

i must drive like crap when i'm only getting 26 mpg for my 5 speeder...

Or you might just be using bad quality gas

Try to get gas from Exxon, they do not add ethanol to their gas, which hurts your gas mileage.

I asked the same thing...

The xD is geared to be a little more aggressive. It's louder, and a little quicker you'll notice.

The Corolla is also much more aero-dynamic, which creates much less resistance. Over 300 miles, the difference in pressure pushing against the xD adds up.

The xD is also HEAVIER than a corolla, believe it or not... by about 100 pounds or so.

i must drive like crap when i'm only getting 26 mpg for my 5 speeder...

I'm in the same boat as you, Yang - I have about 6000 miles on my 5-speed xD, and I get between 24 and 27 mpg driving 30 miles back and forth to work on 2-lane back roads with no traffic, depending how hard I beat it. If I use 91 octane with NO ethanol (Chevvron), drive like a blue-hair, never rev the engine over 3000 rpm, and do a lot of coasting in neutral, I can achive a whopping 28mpg. Oooo...and here's the really good part - if I do all those same things with mostly highway driving at about 70mph, I can then realize tremendously awesome gains all the way up to 28.7 mpg!! Go Figure. WTF??? I even installed a short Ram air filter, and tried a programmed electronic fuel-saver module from voloperformance.com for a couple months, both made absolutely no difference. I have YET to break 29 mpg... Double-WTF... :flame:

cylon, out of curiosity how much do your wheels and tires weigh?

a lot of the people who are getting good mileage have either stock, 17" wheels or pretty light 18" wheels. I was consistently getting 29mpg with about a 50/50 mix in an auto then i stuck the mr7's on there and i'm lucky to get more than 26 now.

garage weighed the stock rims and without caps there were right at 40 pounds each so i'm guessing ~40.5 to 41 with the caps. my motegis are 28.5lbs per wheel and the rubber comes in at 25.7lbs per tire so i'm running nearly 14lbs more per wheel of rotational mass.

i've heard that an additional 7lbs per wheel can make a 3mpg difference but that's about what i'm seeing with double that weight but i'm seeing a difference none the less.

how was your fuel consumption before you put the 18's on?

last but not least i've read before in the toyota truck forums that there's some kind of trick you can do to the ECU that has been proven to cause 10-15% better gas mileage - i'd have to look it up again. maybe we're the unlucky few who just need to reset the ecu? :pray: :P

how was your fuel consumption before you put the 18's on?

My mileage was pretty much the same with the stock wheels as it is now with the new 18" wheels, it hasn't seemed to make any difference. I put my 18" wheels on at 4000 miles, so I had more than a dozen fillups to check my mileage with the stockies, and I have calculated my mileage with every tankful of gas since I bought the xD... as a matter of fact, my best mileage of 28.7 was with the 18" wheels, and my worst mileage of 24.1 was with the stockies... Oh well, that's still WAY better than the 9.5 mpg I get with my Dodge Ram, lol!

You're doing it wrong, Cylon. Ha!

You're doing it wrong, Cylon. Ha!

Well, I don't seem to do much of anything right, haha, but what do you mean by that - what AM I doing wrong? - Please TELL me, lol!! :P

ha, I'm gonna end up buying a scooter, yet.... :rofl:

Are you hauling a trailer of elephants?

Why would you be getting 24? you should be getting 34. I would freak out if I was that low.

Get that checked on.

The xD is also HEAVIER than a corolla, believe it or not... by about 100 pounds or so.

i must drive like crap when i'm only getting 26 mpg for my 5 speeder...

I'm in the same boat as you, Yang - I have about 6000 miles on my 5-speed xD, and I get between 24 and 27 mpg driving 30 miles back and forth to work on 2-lane back roads with no traffic, depending how hard I beat it. If I use 91 octane with NO ethanol (Chevvron), drive like a blue-hair, never rev the engine over 3000 rpm, and do a lot of coasting in neutral, I can achive a whopping 28mpg. Oooo...and here's the really good part - if I do all those same things with mostly highway driving at about 70mph, I can then realize tremendously awesome gains all the way up to 28.7 mpg!! Go Figure. WTF??? I even installed a short Ram air filter, and tried a programmed electronic fuel-saver module from voloperformance.com for a couple months, both made absolutely no difference. I have YET to break 29 mpg... Double-WTF... :flame:

1.You shouldn't use premium fuel in an xD. You should use the manufacturers suggested fuel. The xD was designed to receive optimum fuel economy and performance from 87 Octane. It is a myth that driving a higher octane will improve performance or fuel economy of an econo-box.

2. There is no such thing as a fuel-saver module. If there was a way to increase fuel economy and performance by 15%, Toyota would shell out everything to make that standard. These companies that advertise these modules can't back up the claims with EPA tested confirmed results. The EPA has tested and confirmed that all modules that make these claims make less than a .1 mpg difference per tank, and in some cases, increased fuel consumption by up to 20%.

If you're consciously conserving fuel you need to be over 32 MPG. If not, switch to 87 Octane, and get rid of the fuel chip.

Are you hauling a trailer of elephants?

Why would you be getting 24? you should be getting 34. I would freak out if I was that low.

Get that checked on.

in my case no - just driving around town and not even raggin' it. worst case is my wife is driving and has to stop at a dang starsux drive through but other than that i actually try to be fuel efficient. my car is an auto though and still has less than 1000 miles but it's driving me nuts to the point that i'm even thinking about putting the stock wheels back on it?

i need to find some ethanol free gas!

wow it seems like you all should be getting better gas mileage than me....i consistently get 27-30 mpg in my tc 5spd driving normally...50% city 50% highway. you must be calculating something wrong if you are getting 24-28 mpg driving mostly highway.

just a little weird to me.

wow it seems like you all should be getting better gas mileage than me....i consistently get 27-30 mpg in my tc 5spd driving normally...50% city 50% highway. you must be calculating something wrong if you are getting 24-28 mpg driving mostly highway.

just a little weird to me.


wish i was miscalculating but there's slim chance of that and my speedo / distance is on the money too.

right now I have 87 octane with NO ethanol in my tank, first time I found ethanol-free gas, and just running the back country roads to work everyday. I'm down to 2 lights on my gas guage with 240 miles on the trip odo. so I might make 300 miles and make 28 mpg out of this tankful if I'm lucky...

Sigh... OK, I give up. so much for that ethanol-free gas helping the mileage....I just re-filled today at 266 miles, and it took 10.4 gallons... a whopping 25.6 mpg for this tankful. all two-lane road driving. But these roads are wide, newly-paved, very little traffic, and I generally travel between 45 and 60 mph on them, all the way.

i thought it was funny that i was looking at the window stickers for the nissan sentra and the nissan versa, and the sentra with the more powerful engine got more mpg then the versa.

there are lots of things that effect gas mileage, power to weight, gearing, and aerodynamics.

you don't believe me, look at my dad's 2001 corvette couple with a 6-speed manual. 350 bhp, and he still gets better mpg then i do, the onboard trip calculator confirms it. why, because it weights about the same as the tc, but has over twice the hp, and more torque and gears. and is probably much more aerodynamic.

another thing is driving habits. cylon, shifting at 3000 rpms and accelerating as slow as possible does not equal good mpg. you gotta drive the car efficiently, not just slowly.

anticpate traffic patterns and try to maintain steady pace. i save alot of gas because i slowly coast in gear to red lights, and usually it changes before i get to the intersection, so i save some gas by reducing the number of times i have to move away from a stop.

also, the general rule of thumb for upshifting is 700 rpms above the rpm your car is at when in top gear at 60 mph.

26 mpg, sheesh, i'm supercharged and i get around that many mpg.

yes, well all that is well and good - I've been driving manual transmissions for 32 years, and am aware of all the above mentioned things - but most of that has no bearing on why the car won't even hit 29 mpg in strictly highway driving with the cruise set on 70. And I don't really see the dealer being concerned about it at all, since I'm getting mostly within the rated mileage for the car... and it seems I'm not the only one getting this kind of mileage. :(

I average 36+ at an average speed of about 50mph. Cruise set at 70MPH back and forth to work.

The worst it ever got was a trip down I44 from New Baden, Il to Joplin, Mo. A very hilly road and a 25mph headwind the whole way reduced my average to 31mpg. Cruise set at 75mpg btw.

When my wife drives the car she gets about 2mpg worse than I do.

My opinion is that the difference is in how high an RPM she shifts the car at compared to myself.

The lower RPM you shift at the better MPG you can get.

Also, use the cruise control whenever you can.

My high is 42MPG with a tail wind and without using the AC and the windows down it is not unusual to see 38MPG average between fillups.

I put on cheap/heavy aftermarket rims using the stock tires from about 500 miles on the ticker. The car now has 15,000 miles on it.

I am getting between 30-32mpg in my AT xD. I drive about 50/50, and put the car in N when cruising down hills on the back roads. I am still breaking in the engine, so I don't use cruise too much.

I had an 07 Corolla and averaged about 31 mpg. I used cruise as often as I could, and also put the car in N down hills on the back roads.

The reason you're probably seeing a more "efficient" corolla is because it is more aerodynamic (lower to the ground and not so boxy) and it is also lighter than the xD.

However, you should consider the Corolla has a larger gas tank than the xD (about 2 gallons more), so proportionally the xD is more efficient.

right now I have 87 octane with NO ethanol in my tank, first time I found ethanol-free gas, and just running the back country roads to work everyday. I'm down to 2 lights on my gas guage with 240 miles on the trip odo. so I might make 300 miles and make 28 mpg out of this tankful if I'm lucky...

Sigh... OK, I give up. so much for that ethanol-free gas helping the mileage....I just re-filled today at 266 miles, and it took 10.4 gallons... a whopping 25.6 mpg for this tankful. all two-lane road driving. But these roads are wide, newly-paved, very little traffic, and I generally travel between 45 and 60 mph on them, all the way.

Damn man that sucks...I live in HOT AS HELL ARIZONA, drive with the A/C on and drive an AUTO and still get anywhere from 330-350 between fill-ups...And I too have 18" rims...I don't know what gives with your ride...I'm sure I deal with alot more traffic than you also...

F'k I barely get 300mi :( My car is broken! :cry:

sorry to hear that, 372mi right when the last blinking light came on :)

ya.... um.... i dont get how lots of you guys are getting such low mpg. im averaging 35+ driving 70 mph on the highway. thats with 18'' wheels too :silly:

Also add to wat draxcaliber said factor... things like differences in the tires' rolling resistance, intake system (from manifold to filter), exhaust piping, ecu, internals, & even variations from any 1 vehicle to the next are possible.

climate and elevation are factors also. the higher u r, the thinner the air is. lowering the car and opening the front bumper duct on the intake side will help.

Try to get gas from Exxon, they do not add ethanol to their gas, which hurts your gas mileage.

They do in Alabama. I drove my xA to AL back in July and got 42mpg going down, filled up in AL at an Exxon that had ethanol mixed in and got 37.5 mpg on that tank.