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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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#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.
#298 of 304 Re: What can I do to increase gas mileage [deure] by gizzer777 Oct 07, 2009 (2:39 pm)
Replying to: deure (Sep 26, 2009 4:52 am) Plz make sure your air filter in the engine compartment is reasonably clean and free of debris. I also get 40+ on the hwy but low 20's in heavy city driving. ..2009 1.8L XLE Automatic. A dirty air filter will kill your MPG! Does your gasoline have ethanol mixed....also bad news
#299 of 304 2009 LE MPG by jimwwhite Oct 14, 2009 (3:37 am)
I've had my '09 LE for almost a year now and I've got almost 30K miles on the odo. Great car! I can't say enough about it. I drive 120 miles a day with about 95% of that on the interstate. The remaining is on country roads and about 2 miles of in town driving with only a few red lights. I average 39.4 MPG. When I get on the interstate I click in at 65 and it stays there until I exit. I've tried 70 and I've seen no difference. I keep my tires at 40 PSI and I rotate them each oil change because of all the highway driving and they're wearing very well. I've gotten 42.2 on a long road trip up I-95 from Raleigh to the DC area and back. Great car! I brag on it to everyone who'll listen. Most run away now when I get going...   PS: And I've not had any problems with the car whatsoever! Replies to this message: terceltom (Oct 14, 2009 5:20 am) tucson_mike (Oct 14, 2009 6:13 am) mcdawgg (Oct 14, 2009 8:29 am)
#300 of 304 Re: 2009 LE MPG [jimwwhite] by terceltom Oct 14, 2009 (5:20 am)
Replying to: jimwwhite (Oct 14, 2009 3:37 am) Nice to hear that you don't have any issues with the new EP steering. Some on this forum seem to think that EVERY Corolla is infected with some kind of faulty steering problem. I agree whole heartily with your fondness of the Corolla as I fully enjoy driving my 2009 XLE. I would just question the safety of over inflating your tires.
#301 of 304 Re: 2009 LE MPG [jimwwhite] by tucson_mike Oct 14, 2009 (6:13 am)
Replying to: jimwwhite (Oct 14, 2009 3:37 am) I have been experimenting with the tire PSI. Being underinflated is generally agreed as dangerous and poor for MPG. I have been stepping up the pressure each month looking for the point of no further improvement in MPG. At 37 PSI right now and it seems to be leveling off at about 32.5MPG mostly city with a little interstate driving. I think there probably is a point on the high end where the MPG might improve slightly but the decreases safety outweighs that. Each tire is different also - I got the Michelin HydroEdge which I think says 44PSI is the max on the sidewall. Replies to this message: mcdawgg (Oct 14, 2009 8:29 am)
#302 of 304 Re: 2009 LE MPG [tucson_mike] by mcdawgg Oct 14, 2009 (8:29 am)
Replying to: tucson_mike (Oct 14, 2009 6:13 am) Be careful about going too high. You will get less traction, because there will be less tire surface area on the road. Great for MPG, bad for safety. I add 3 lbs to what the sticker inside the door says.
#303 of 304 2010 Corolla 48 MPG! by xbubblehead Oct 17, 2009 (6:48 pm)
I filled up in Damascus (Oregon) and drove to Salem (Oregon). As I was leaving I-5 to go to Highway 22 my gas mileage peaked at 48.0 mpg! I filled up with Union 76 gas (regular) in Damascus. I was easy on acceleration but did run into some traffic in Clackamas. I drove conservatively using the cruise control set at about 58. While on I-5 I was going about 65 and did some drafting behind trucks for a portion of the trip. Replies to this message: terceltom (Oct 18, 2009 11:58 am)
#304 of 304 Re: 2010 Corolla 48 MPG! [xbubblehead] by terceltom Oct 18, 2009 (11:58 am)
Replying to: xbubblehead (Oct 17, 2009 6:48 pm) Excellent MPG !   Can I ask how do you like the EPS steering in your new Corolla?

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