Is it normal for fuel economy to drop during cold weather

[GibbsYaris07]

I had my Yaris for 3 months now to use for 5-6 hours of business commuting. I usually avg 37-38 mpg through flat land and small mountain conditions. The last 2 weeks I've been averaging 33-34 mpg on the same commute with similar driving habits. How could I improve my mpg back to 37-38 mpg? I head stories about the 40 mpg + which is definitely realistic in the certain conditions, driving 65mph or less but its unrealistic on my drive.

[dogsridewith]

read current thread on just this question

[matti]

I had my Yaris for 3 months now to use for 5-6 hours of business commuting. I usually avg 37-38 mpg through flat land and small mountain conditions. The last 2 weeks I've been averaging 33-34 mpg on the same commute with similar driving habits. How could I improve my mpg back to 37-38 mpg? I head stories about the 40 mpg + which is definitely realistic in the certain conditions, driving 65mph or less but its unrealistic on my drive.

I live in northern Minnesota, and in the heart of winter, my MPGs drop about 20% or so.

[WeeYari]

Every year sane question gets asked a handful of tines. Yes, normal.

Sent from my Elite_5_5_Octa using Tapatalk

[bronsin]

Not only does it drop in cold weather, if you only drive a mile or two to the store and back youll get 29 mpg. Even in summer. :eek:

[GibbsYaris07]

thanks fellow members. I value you're input.

[ex-x-fire]

I think this is working good. I haven't any hard mpg numbers yet.
http://www.yarisworld.com/forums/showthread.php?t=59283

[tmontague]

Just noticed my Vibe getting about 300km's to a tank vs the usual 400km avg. Winter gas blows and thencpkd weather starts doesn't help