- #250 of 304
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Re: [caaz]
by bimmer4me
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Aug 27, 2008 (9:14 pm)
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Replying to: caaz (Aug 27, 2008 8:43 pm)
I was close to purchasing a Civic, but in the end I chose the 09 Corolla because it was a much quieter car on road surfaces.
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- #251 of 304
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Oxygenated Fuel Starts October 1st
by hoopitup2000
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Sep 28, 2008 (9:34 am)
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You may want to fill your tanks in the next couple of days to get the last of the higher mileage summer blend. Your mileage will drop because of the oxygenation of the the fuel. The vehicles oxygen sensor will detect a leaner mixture; causing the computer to richen the air/fuel ratio. Seems to me that this changeover won't cut much air pollution if it causes vehicles to burn more fuel. (It will make the oil companies happier!!)Can anybody offer any insight on this??????????
I'm curious to see how much MPG difference this makes to the posters on this forum. My mileage "average" drops from 41 to 34. I just do not understand the reasoning behind doing this.
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- #252 of 304
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Re: Oxygenated Fuel Starts October 1st [hoopitup2000]
by terceltom
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Sep 28, 2008 (3:54 pm)
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Replying to: hoopitup2000 (Sep 28, 2008 9:34 am)
Interesting! Does this change take place in all areas of the country regardless of climate/seasons?
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- #253 of 304
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Re: Oxygenated Fuel Starts October 1st [terceltom]
by kenym
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Sep 28, 2008 (4:53 pm)
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Replying to: terceltom (Sep 28, 2008 3:54 pm)
I live in Northeast Ohio and they add the winter additive to our fuel from October through April. On average we get 31 - 33 mpg without the winter additive and 27 - 28 mpg with the winter additive. Part of it could be because of the bad roads and it takes longer to get around when it snows. But most of the drop in mpg is the winter additive. They claim it prevents fuel line freeze ups. ( Condensation in the fuel lines. ) Personally I think it is just a ploy to sell more gas. 
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- #254 of 304
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Re: Oxygenated Fuel Starts October 1st [kenym]
by backy
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Sep 28, 2008 (5:45 pm)
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Replying to: kenym (Sep 28, 2008 4:53 pm)
Many states, including mine (MN), have so-called "winter gas" i.e. up to a 10% ethanol blend year round now. The formula might be tweaked a bit for winter, i.e. to make it vaporize more readily in cold weather, but there's not the big difference any more between summer gas and winter gas, at least not where I live. I did notice though when I was driving through WI a couple of summers ago and filled up at an E0 pump that my fuel economy for the trip home seemed about 10% better than the trip down. Part of that might be attributable to other factors, e.g. having the A/C off, but I bet some of it was the gas.
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- #255 of 304
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Toyota Corolla S 2009 fuel economy problem
by jonmad
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Nov 28, 2008 (9:38 am)
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Hello, I need some assistance with a gas mileage issue I'm having. I purchased a brand new 2009 Corolla S around the beginning of november 2008. I 've traveled about 580 miles on the vehicle thus far, city driving mostly and some highway.
The rating is 27 city and 35 highway. I understand the fuel economy varies based on driving habits and conditions but I'm only getting about 230-240 miles on a full tank of gas. Thats about18.2 miles per gallon right? (240miles / 13.2 gallon tank =18.18 mpg) I haven't done any crazy driving with my car. I don't think there's anyway I should be getting such poor mileage on a new corolla. I don't expect 27 city but I should be getting over 23 mpg right?
I took it to the service station where I purchased the vehicle and informed the serviceman what my problem was. He refused to look at it and told me "you need to break in the car some more, 3 to 5 thousand miles and then you'll see it." Is he being truthful or just blowing me off? I don't know much about cars but every single older model toyota I've driven has given me better fuel economy. Maybe I'm wrong and my economy is suppose to improve after I break it in more. I hope this is the case but I am not sure, thats why I'm asking.
Note: I use the type of gas I'm suppose to.- (REGULAR)I've different gas stations as well.
I need some guidance, please help me. thank you for your time.
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- #256 of 304
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Re: Toyota Corolla S 2009 fuel economy problem [jonmad]
by terceltom
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Nov 28, 2008 (10:56 am)
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Replying to: jonmad (Nov 28, 2008 9:38 am)
Your calculations are flawed. MPG is calculated by the number of miles driven on a tank of gas that you actually are pumping, not the size of your tank. In other words start with a very full tank of gas and start recording your driven mileage immediately. At next fill-up take that number of driven miles on that tank and divide by the actual number of gallons you pumped into your tank on this next fill-up, not the tanks size. This is necessary because you will always have some gas left in your tank even if driven to what you think was empty.
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- #257 of 304
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Re: Toyota Corolla S 2009 fuel economy problem [jonmad]
by mnf
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Nov 28, 2008 (10:57 am)
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Replying to: jonmad (Nov 28, 2008 9:38 am)
Yes and No even in my break in ( I now have 7000 K) I was getting 27-30mpg range but now 35mpg on a 70 hwy 30 City driving. I would do a few more tanks to verify it. I hope you didn't count the tank it came with as they are NEVER all the way full.
Good Luck
MNF
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- #258 of 304
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by jonmad
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Nov 28, 2008 (10:58 pm)
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Replying to: mnf (Nov 28, 2008 10:57 am)
Thank you both for your responses. I ran the gas pretty much down to empty but I'm going to try a few more tanks and calculate it the way you told me to and see what I get. However I seriously doubt its going to result in 26-27 mpg though. Guess time will tell. thanks again I'll post again when i get the results.
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- #259 of 304
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Re: [jonmad]
by terceltom
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Nov 29, 2008 (5:56 am)
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Replying to: jonmad (Nov 28, 2008 10:58 pm)
No, you won't get the 26 to 27 mpg. your looking for with your city driving but unless you were able to actually pump 13.2 gallons into your Rolla your calculations were inaccurate. By the way, I also have a new 2009 Rolla and do 95% city driving and can't get better than 23 mpg. in the city. I wasn't expecting better though as I have a 2001 Rolla that also gets the same. Now get them on the highway and I can push 40mpgs. no problem.
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