|01-26-2014 09:49 AM|
Very simple: Air resistance.
Similar to how you make more power with a colder, denser air charge being pulled into your combustion chamber, that same principle applies to air resistance and aerodynamic drag forces. Simply put, in colder temperatures, it is harder for your car to cut through the air than it is in warmer temperatures. It's the same reason most top-speed record runs are made at the height of day (despite track temperature or heat-soak); the air is literally easier to move through as temperature goes up.
Not only that, but your tire pressure drops due to the ambient temperatures, and colder temperatures also affect your fluids' viscosity until they get up to operating temperature for peak lubricity.
I've never really bought into this myth about winter blend gasoline being less fuel efficient. On a properly maintained vehicle, you should be able to get within 1 or 2 mpg of your normal F/E ratings.
|01-26-2014 09:32 AM|
I don't bother. Traffic around here (Northern Virginia) absolutely sucks. And my commute is so long that pushing it would just cost me more $. I average 65-70MPH consistently with cruise control on and this yields a constant average of 38MPG over the course of my commute.
I also accelerate extremely slowly, hypermile when possible, and try to avoid braking. I need the car to last as long as possible. I do over 40k miles a year and don't want to have to get a new car or have maintenance headaches in 3 years.
|01-26-2014 09:27 AM|
|5speedRuby||I have a 5 speed 2013 and shift around 3000 among light acceleration but I push my car to the max ALOT. lol fast car, she wants to go fast, but even under hard acceleration im still managing 27.5 MPG on regular gas winter blend with full synthetic high performance oil every 5000 miles|
|01-26-2014 08:20 AM|
|01-26-2014 05:49 AM|
|01-26-2014 01:49 AM|
|FS00008||I have a 2014 SE 5MT with 10k on the clock. I average 38MPG. I drive 99.9% freeway however (200 mile daily commute), so that's probably part of it.|
|01-10-2014 04:21 PM|
|Dave75||It seems a bit low to me. I usually shift between 2500 and 3000 rpms and I am seeing an average of 6.7L/100kms even with the winter blended gas. Went up from 6.1L/100Kms in the summer months. I drive about 60% city and 40% hwy.|
|01-08-2014 01:07 PM|
|RonMaiden||My wife has very short commutes (a tad over a mile each way) and when I drive the car I tend to be a bit heavy on the pedal and with similar city/hwy driving like your's we average around 28 but with winter set in the average dropped about 2mpg which is the norm in part due to your car gulping in cold dense air which requires more fuel to burn plus if driving in snow then that causes MPGs to drop also plus a little more idling to warm up all add up to a few less MPGs in the winter.|
|01-08-2014 12:12 PM|
i think thast pretty normal
i'm in NB Canada,
are roads are pretty much covered 99% ice atm
i'm getting around 15-20mpg (95% city driving)
during summer i get 20-25 mpg city ( stop sign's every 400m, lights etc, always stop and go every 30 second's until i get to work)
if i jump on the highway i can still get 40 + mpg
i think the decrease has a lot to do with
-wheel spin (snow/ice)
-i'll get way way worse mileage if i don't warm up (10-15 minutes stat up, especially when it gets down to -35 degree's)
-winter tires have more resistance
note i also have 2012 5 speed
|12-01-2013 09:11 PM|
|SixerJr||However there is the rare tank when I cant seem to keep my foot off of the floor and I'll get somewhere around 22 city...|
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