Thread: Cold climate engine mileage

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  1. #1 Cold climate engine mileage 
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    Hey guys, up in Minnesota we have had some colder weather recently. I have been driving the same way and distance since August and my mileage just dropped from up around 26.5-28 to 22.5-23. I know winter does cause a drop in fuel efficiency but is this how much it changes on our cars? 148k on the car, fuel filter around 137k and I rarely go above 70mph. So I'm not thinking it needs a filter. Any ideas? Or is it just the cold weather?
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  2. #2 Re: Cold climate engine mileage 
    GT Level Member hockeybawler's Avatar
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    Just the weather man, mine has dropped from 24ish to now 20ish.
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  3. #3 Re: Cold climate engine mileage 
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    Alright, just wondering. Blasted cold with no spot in the garage. My project takes up too much space!
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  4. #4 Re: Cold climate engine mileage 
    I live here. SlowNA06's Avatar
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    winter blend gas, car takes longer to get to optimal fuel-efficient temperature
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  5. #5 Re: Cold climate engine mileage 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    You can always try cleaning the TB and MAF, and doing a regular tune up with new spark plugs and wires.

    But likely its the cold weather and if you start the car to warm it up, thats less mpgs.

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