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Toyota Corolla Real World MPG

304 messages,  Last post on Oct 18, 2009 at 11:58 AM

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What is this discussion about? Toyota Corolla, Fuel Efficiency (MPG), Sedan

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#288 of 304 Re: 2009 vs 2010 Gas mileage [dvd0060] by mcdawgg Aug 31, 2009 (8:16 am)
Replying to: dvd0060 (Aug 29, 2009 1:32 pm) I think I read something in ToyotaNation about the Engine Control computer programming being changed, and that changed the fuel mpg. Maybe someone here can explain?
#289 of 304 2009 corolla milage by crazedmom Aug 31, 2009 (8:38 am)
I have a 2009 corolla purchased new 10 months ago, I travel about 45 mi day and frequently use cruise control, and get 39 mpg. Not many street lights to stop at though. I must say that if i don't use cruise control the numbers are closer to 34 or 35 mpg, I get much more smooth ride up hills if i click into cruise, seems to hold at the speed instead of a constant up / down shift. If i travel on flat freeways on cruise set at 68 mph I get 60 + mpg it is great! I have a LE 4 cl. automatic Replies to this message: dvd0060 (Aug 31, 2009 11:43 am) roxy11 (Aug 31, 2009 4:30 pm)
#290 of 304 2010 Corolla mileage by dsorgnzd Aug 31, 2009 (11:37 am)
My 2010 Corolla LE (1.8 automatic) has averaged 37.7 mpg overall for its first 2000 miles. That is based on actual gallons purchased and actual miles driven, not the indicator on the instrument panel. Much of my driving is on the highway (at 65-70 mph), but I've also done quite a bit in town, and on secondary roads at 35-45 mph. Compared to the "clunker" I traded in (a minivan rated at 18 mpg combined) this is a fantastic improvement.
#291 of 304 Re: 2009 corolla milage [crazedmom] by dvd0060 Aug 31, 2009 (11:43 am)
Replying to: crazedmom (Aug 31, 2009 8:38 am) I had the closed tot he same experience averaging 45.3 mpg with the ac on, hilly terrain Replies to this message: roxy11 (Aug 31, 2009 4:30 pm)
#292 of 304 Re: 2009 corolla milage [dvd0060] by roxy11 Aug 31, 2009 (4:30 pm)
Replying to: dvd0060 (Aug 31, 2009 11:43 am) the 2009 corolla had the TSB on a possible excessive use of oil under certain conditions. toyota's answer for this was to reflash the ECU. it has been theorized over at toyotanation that the only way this would help with the oil consumption problem is by detuning the engine, resulting in reduced hp and/or reduced mpg.   since all the 2010's had the updated ecu programming already, some of us believe that is connected to the city and highway mpg going down by 1 mpg.   however, the manual transmission models in the base and s versions of the 2010 did not lose anything from their '09 rating, remaining at 26 city and 35 highway, so perhaps the manual transmissions werent afflicted w/ the oil consumption problem in the first place. i know one member got a response from toyota that they tweaked the testing to better comply with the epa requirements, thus resulting in the drop on the automatic tranny. it remains a mystery for now.   at any rate, i never had an oil consumption issue. i have the 5 speed manual and easily get 40+ mpg (calculated) on mostly suburban and hwy driving without making too much effort.   i will say that the computer mpg readout is fairly accurate compared to many other economy cars out there. my computer readout is consistently within .5-2 mpg off from my actual calculated mileage.
#293 of 304 2010 Toyota Corolla XLE - 36 to 40+ mpg combined by wirelesslink Sep 18, 2009 (5:35 pm)
I am getting 39-40 mpg+ combined city/hwy, if I accelerate gradually and cruise at a leisurely 62 mph in the slow lane on the freeway. I think that if I drove all highway miles, my mpg would be higher. I use cruise control and take my foot off the gas and naturally de-accelerate if I know I will be decreasing speed for a turn, off ramp or stoplight. If I am in a hurry, drive quickly and cruise at 70mph, my mileage can drop to 36+ mpg. If you drive it like a Prius, you will be rewarded. Reset the trip gauge and the mileage computer settings at each fill-up and see if you can get 400+ miles per tank.   I think I would get better mileage with the smaller rims/narrower tires. I drop 1 mpg (I think) when I use the air conditioner, which is rarely.   I plan to use the 0w-20 synthetic oil for fuel efficiency, and maximum oil flow in the engine during start-up. Personally, I wouldn’t use the 5w-30, because the dealer said it was OK. Factory fill and Toyota’s bottled Ow-20 is a full-synthetic made for Toyota. I hear the additive package was specially developed for Toyota. What could be better than a custom full synthetic oil.
#294 of 304 What can I do to increase gas mileage by deure Sep 26, 2009 (4:52 am)
Just purchased a used 2002 LE Corolla last weekend. First tank of gas was 33 mpg, second was 31mpg. I am disappointed. What things can I do to help increase it? Reviews on Consumer Reports listed mpg as much higher. Replies to this message: terceltom (Sep 26, 2009 5:51 am) tucson_mike (Sep 26, 2009 6:30 am) gizzer777 (Oct 07, 2009 2:39 pm)
#295 of 304 Re: What can I do to increase gas mileage [deure] by terceltom Sep 26, 2009 (5:51 am)
Replying to: deure (Sep 26, 2009 4:52 am) Your disappointed? Wow, I'd gladly trade the gas mileage I get in my 2009 XLE Corolla for that any day. I haven't topped 27 mpg. in the city yet.    I can only suggest keep tires inflated correctly, slower starts, no A.C., make sure spark plugs are okay(they should yet even if they're the originals yet).
#296 of 304 Re: What can I do to increase gas mileage [deure] by tucson_mike Sep 26, 2009 (6:30 am)
Replying to: deure (Sep 26, 2009 4:52 am) The first thing you want to do it figure out if you need to adjust your reported odometer distance. I have a 2006 Corolla 5speed that I thought was getting about 33MPG in city driving – when I got new tires, it dropped to 28.5 immediately. Two issues there, first the odometer is counting shaft rotations and converting it to mileage based on assumed circumference of the tire. As my mechanic said, worn tread on the old tires was giving more rotations to go the same distance – so was reporting a longer distance than I was actually going - giving me a high MPG calculation. So I compared my current odometer distance to the mile marker distance on a 100mile stretch of interstate one day. Found, with the new tires, I was getting about 99.2 miles for a 100mile stretch – this meant I needed to adjust the odometer up by a factor of 1.01. Not much in this case but the new tires are bit “taller” than the odometer is expecting giving me a bit further rolling distance per revolution. I am guessing the old tires would have read about 103 miles over the same distance.   So that was interesting, but I still lost MPG with the new tires. My mechanic added that most tire pressure targets are set for comfort – he suggested I target a pressure in the middle between what is on the door frame and the max. pressure shown on the tire. That meant, for me, going from 30PSI to 36PSI. That in fact raised my MPG from 28.5 to 31MPG and did make the ride a bit stiffer but still fine. Still not where I used to think I was with the old tires but I am thinking now that 2MPG difference was tire height difference.   On the highway I get about 38MPG (I used to think it was 41)
#297 of 304 Real world MPG 2009 Corolla LE by psciortino Oct 07, 2009 (1:12 pm)
We have just returned from a 3045 mile trip from Florida to Cape Cod and return with a few side trips such as Myrtle Beach. We used cruise control and never went over 60 miles per hour. Our highest mpg for a tank full was 44 and the lowest 38.9. Our average was slightly over 40 MPG. Adding the two numbers (44 & 38.9)will not get the average because most of the tanks full were about 40MPG. Some conclusions: use cruise control and drive at a moderate speed if MPG is important.

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