Geeze. I just refilled my tank and got the lowest fuel economy I've ever had. 28 mpg. I usually average 35 mpg during the summer in town. 1994 Corolla 5 speed manual.
Some of the gas pumps, I'm noticing, say 10% ethanol. So, I suspect the much higher ethanol is the difference between this winter and the previous ones. It's been a warmer winter than usual too, so it isn' the temperature.
I've noticed this as well; the pumps here used to state up to 10% ethanol. Now they state 10% ethanol. Arghhhhhhh.
Originally Posted By: FZ1
Down? No,man it's up! No a/c use in winter.
Hasn't this myth been officially busted many times? I know i get the same average MPG in my car all year. Regardless of A/C or none and its really cold.
Originally Posted By: Kaie
Originally Posted By: FZ1
Down? No,man it's up! No a/c use in winter.
Hasn't this myth been officially busted many times? I know i get the same average MPG in my car all year. Regardless of A/C or none and its really cold.
Originally Posted By: chubbs1
I am off 2 MPG's consistently in my Civic. I was getting 28 for about 9 mo's, just recently it is 26 for about the last 6 weeks. I live in FL. It is cold again this winter, but I think the real culprit is the GAS. I think they are messing with it to maximize profit. I even switched from 5w20 to 0w20, great oil but no MPG change. And you being off that much, don't you think it has to be the gas?
I wonder if there's something wrong with your Civic? Don't Civics typically get high 30s?
I lost maybe 3-4 mpg in the city with the Sonata, but in all fairness, I'm doing a lot of idling, both while I'm scraping the windows and at the train station. I'm still getting low 20's (barely) though, which is fine with me since the Malibu was lucky to break 17 in this weather.
Kaie - Whether or not a vehicle loses mpg in the winter depends on fuel blends in a given area, how cold it gets, driving style, as well as the vehicle itself. Some, like my Jeep, don't really notice. Others lose a lot.
My highway mileage is down from high 30s to a little under 35 mpg, depending on road conditions. I go by my Scanguage II and its trip meter for that, as there are far too many variables in my city driving to come up with a meaningful average (it fluctuates every fill up based on number of short trips vs highway %, etc).
On the highway I can more readily utilize the real time feedback from the Scangauge II to optimize fuel economy and more accurately see the impact of winter blended fuel. No doubt colder temps and resultant longer warm up to operating temp times are further lowering overall mileage as well.
My car coasts down from 30 to zero where I used to have to brake from 25 at the first stop sign in my morning. Cold wheel bearing grease plus snow tires are like a parachute!
I don't think it's all the gas. You've got to readjust (increase) tire pressure when the temps drop. + there is more idleing and possibly slower traffic in winter.
I have mine inflated to just under max sidewall pressure. It is 44 front, 35 rears (same size tire, different brand). They're inflated to 42 front, 34 rear. That seems to work well on different surface conditions and gives better FE than inflating to OEM specs. They are winter tires, though, which will take a bite out of FE compared to all season tires the rest of the year.
My '03 Accord, 2.4 litre with 5 speed manual - from 30 MPG in the summer to 25 MPG in the winter.
Wife's '07 Accord, 3.0 litre V-6 w. automatic - from 20 MPG in the summer to 16 MPG in the winter.
Here's the kicker - '02 CR-V - from 22 MPG to 15 MPG in winter. Yikes. It has to be the gas. Our driving habits do not change.