Those numbers are from new.

On any of my cars, used or new I can’t get close to the estimation mpg from the window sticker. Mpg has lots to do with how the vehicle was maintained. I’d estimate that initially, a used corolla or matrix would net a lower mpg estimation now. Figure closer to 32 for the corolla and maybe 29 for the matrix.

It’s then your quest to improve the mpg through maintenance to get there. Most likely it will take time, but you’ll see an improvement. Depending on service history will dictate the age of the engine.

When I bought my 06 corolla xrs back in 2016, I was around 28-31 mpg. Over time, it had improved some. The engine, trans, and chassis had ~70k. Right after I purchased it, I changed the fluids and plugs. For some time, I got closer to 33.

It’s a gamble for sure.

 

Read this. Here's Why Real-World MPG Doesn't Match EPA Ratings | Edmunds

My 06 vibe got up to 7.1L/100km which equates to ~34mpg on the highway, with proper tire inflation and synthetic fluids. Is fuel economy is your main concern, go with the Corolla as the matrix is probably a few hundred pounds heavier and that does contribute significantly to the reduced mpg. Awd will be even worse.

 

I realize that efficiency falls over time, but I don't trust the DOE numbers to begin with. My 20 year old 4Runner is rated for 19 mpg highway but I can easily get 21 mpg (via scangauge, which I've confirmed as accurate via tracking my mileage and gas purchases).

I was wondering if maybe the Corolla's 41 mpg was a bit of an over-estimate, it got that rating in 2005 but in 2008 they rated it for 37 mpg, even though there were no major changes to the vehicle between those years. But then again some people on here have said they were hitting ~40 mpg regularly. So IDK.

More than anything else, I'm wondering how much less efficient the Matrix is. If it's 37 vs 41 that would be the same for me as 35 vs 39, since it's -4 in both situations.

 

I realize that efficiency falls over time, but I don't trust the DOE numbers to begin with. My 20 year old 4Runner is rated for 19 mpg highway but I can easily get 21 mpg (via scangauge, which I've confirmed as accurate via tracking my mileage and gas purchases).

I was wondering if maybe the Corolla's 41 mpg was a bit of an over-estimate, it got that rating in 2005 but in 2008 they rated it for 37 mpg, even though there were no major changes to the vehicle between those years. But then again some people on here have said they were hitting ~40 mpg regularly. So IDK.

More than anything else, I'm wondering how much less efficient the Matrix is. If it's 37 vs 41 that would be the same for me as 35 vs 39, since it's -5 in both situations.

I’ve owned 2 gen 9 corollas. My 04 got 39 even with 176k when I sold it.

With proper tire size and inflation, you can get there. Look into low rolling resistance tires. Other than tires, check and replace the fender liners. Any gaps there will contribute in mpg loss.

MPG has always been fluffed. @hardtopte72 has good diy writeups for maintenance. They even have one to clean the fuel system.

AWD is def heavier and returns lower mpg. The additional weight of the transfer case and drive shaft contributes accordingly.

 

This generation is 28-34mpg.

There are ways to get more of course.

AWD will run a good amount less as the driveshaft will always be spinning even tho the rear axle is decoupled.

I’d say Matrix is great overall but I wouldn’t expect 34+ unless you actually do things to maximize MPG.

I’d go for Matrix for utility. Front wheel drive. Rear drum brakes. Remove rear seats. Remove spare tire. Install lightweight wheels. Keep up to date on maintenance and it will be a solid car for both city and HWY.

Prius if you honestly want just MPG and city only driving. I’d always choose Corolla/Matrix for Hwy and some city. More power and scoot.


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I usually get 27-31 spirited daily driving 04 matrix xrs. Tires @36psi 03xrs ecu

 

OP, depending on where you live, you might be better served with the Corolla/FWD Matrix with winter tires over the AWD Matrix.
The AWD Matrix/Vibes are rare and there are plenty of them with severely corroded rear subframes. Not to mention that the rear components are unique and not quite as commonplace as those on the corolla/FWD Matrix.
In terms of gas mileage, summer blend with tires at 38psi cold, going on a flat freeway, cruise set at 75mph with no headwinds, no air conditioning - gets me about 35-36mpg
Keeping up with traffic (10+ above posted limit around here), ac on, without heavy head winds -33mpg all day long
Winter blend and running at 31psi with the above conditions drops it to 30-31mpg

 

the first gen awd matrix and vibe are fine cars but the extra drivetrain components put a heavy toll on the small engine. stay with fwd if mpg is your only concearn

 

Thanks for all of the useful advice! I had my mind set on a Corolla for the longest time but came across a clean looking AWD Matrix with 120k on the odo for $5.5k and it got me thinking. I don't really need AWD since the 4Runner takes care of that, but I figured it was a nice feature. But I didn't realize it hurt mpg so much. And it's a real good point that even if the engine is the same, it could be hard sourcing junkyard parts for the rear end. Maybe I should just buy both lol.

 

i had the fwd model but now have awd. i wouldnt want to go back to fwd but im not concearned with mpg and i dont do alot of long distance highway travel. if the car was well cared for and driven sensibly you shouldnt have to worry about the rear end or front end. as preventative measures i replaced the rear end axle seals and coupler bearings and seals when i bought the car so i would have piece of mind . but as far as opening the differentials , i shouldnt ever have to bother with that