greycrx87 Report post Posted October 25, 2013 (edited) With temp dropping to low 30s in Chicago, I'm noticing around 10 MGP difference in my daily work commute. Was averaging around 47MGP roundtrip and seeing 37-39MPG right now, and I don't even have the winter grade fuel in yet. A bit disappointed, but oh well. Seem like the software patch made no difference for cold weather. Edited October 25, 2013 by greycrx87 Quote Share this post Link to post Share on other sites
jeff_h Report post Posted October 25, 2013 This is 'deja-vu all over again' as there are several threads from last winter when temps got colder and owners wondered what could be wrong... battery is less efficient in the cold, and it takes a lot of energy to get the engine and cabin heated up and kept that way. 1 hybridbear reacted to this Quote Share this post Link to post Share on other sites
dkegel Report post Posted October 25, 2013 Yep. Saw the same thing with our 2010, although not 10 mpg worse. Dave Quote Share this post Link to post Share on other sites
LEM Report post Posted October 25, 2013 For me, the biggest drop was with rain and some wind. 15 MPG less.Temperature is not affecting it too much... yet. 1 KLH reacted to this Quote Share this post Link to post Share on other sites
keithsm2 Report post Posted October 25, 2013 This is the pain we felt in texas...but with the AC system...its a huge drain and unbearable without it. Quote Share this post Link to post Share on other sites
MaineFusion Report post Posted October 26, 2013 We're now down in the low 40s to upper 50s and I'm seeing about a 2-3 mpg drop in fuel economy for my regular commute. I think my last fillup will be my last 50mpg+ tank of gas until spring. Currently at over 15,000mi my lifetime fuel economy (from factory) is 46.7mpg. I don't think I'll see 46.8mpg unless I peg it in the next few days or we have another warm spell. I was really hoping to take a photo of my display showing a lifetime fuel economy of 47.0mpg before lower temps started dragging it down, but it doesn't look like that will happen. :cry: Quote Share this post Link to post Share on other sites
elle Report post Posted October 26, 2013 Yep, this is pretty common. All the things that use energy have to derive that energy from somewhere, and that affects fuel economy. For a while when my Fusion was new I was just warming the cabin in the morning and then turning the heat off, but I finally decided that I want to just drive my car and not be obsessed over everything that affects mileage, so I stopped doing that. It's getting cooler again, but with the upgrade I'm not seeing as much affect as I'd expect without it, so I think the upgrade is pretty successful. 3 Toz, DeeCee and hybridbear reacted to this Quote Share this post Link to post Share on other sites
Toz Report post Posted October 26, 2013 As I will be getting my car in mid-winter, I guess I will have to be ready for low mileage for the first 3 or 4 months. But I guess that means that my MPG will have nowhere to go but UP! I am hoping to average around 40+ MPG in the summer time, so if I end up in the mid to high 30's in the winter I guess that will be OK. I have a 18 mile commute with rolling hills on a two lane road with a 55 MPH speed limit (15 miles highway) with 3 stop lights. From everything I have read on this forum I should do OK with MPG. Quote Share this post Link to post Share on other sites
MaineFusion Report post Posted October 26, 2013 As I will be getting my car in mid-winter, I guess I will have to be ready for low mileage for the first 3 or 4 months. But I guess that means that my MPG will have nowhere to go but UP! I am hoping to average around 40+ MPG in the summer time, so if I end up in the mid to high 30's in the winter I guess that will be OK. I have a 18 mile commute with rolling hills on a two lane road with a 55 MPH speed limit (15 miles highway) with 3 stop lights. From everything I have read on this forum I should do OK with MPG. Between winter temps, the car breaking in and you getting use to it, I'd say you'll start off with a pretty sad MPG. On the bright side there will be a long period where the MPG just keeps climbing and constantly seeing the MPG increase feels like a steady stream of achievements 1 hybridbear reacted to this Quote Share this post Link to post Share on other sites
hybridbear Report post Posted October 27, 2013 I fixed the spelling errors in the title for you. You will see a big drop in MPG with winter temps. A 20% drop is not unrealistic. Read this thread about how to minimize the impacts of cold temps on your MPGs. As has been discussed many times before, ALL cars see decreased MPGs in the winter. Even gas-only cars often see a drop of about 20% in fuel economy. However, since the drop is fewer MPGs many owners don't realize how big the decline is from a percentage standpoint. With temp dropping to low 30s in Chicago, I'm noticing around 10 MGP difference in my daily work commute. Was averaging around 47MGP roundtrip and seeing 37-39MPG right now, and I don't even have the winter grade fuel in yet. A bit disappointed, but oh well. Seem like the software patch made no difference for cold weather. 1 corncobs reacted to this Quote Share this post Link to post Share on other sites
