Author Topic: Winter MPG  (Read 8961 times)

Hicardo

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  • My Honda: Crosstar Fjord Mist 2025
Re: Winter MPG
« Reply #15 on: January 19, 2026, 09:20:57 PM »
Roughly i would say my average in winter compared to summer with the same journey types, its about 8mpg less than in summer

What that additional 8mpg inefficiency is due to is a guess, but im thinking its a combination of low temps affecting trac battery, longer times the ICE is running to heat the interior, car standing in driveway defrosting on very cold mornings

Henners

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  • My Honda: 2025 Sport
Re: Winter MPG
« Reply #16 on: January 29, 2026, 02:43:56 PM »


My last fill up. Loads of short trips in the cold. It looks like Honda have decided that it’s more efficient to use the excess heat from the engine to heat the car. The battery gets fully charged very quickly and stays full. But if you switch off the heating the car immediately switches to EV. I’m doing a couple of long journeys at the weekend so we’ll see how that goes


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Marco1979

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  • Country: nl
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Re: Winter MPG
« Reply #17 on: January 29, 2026, 06:34:34 PM »
But if you switch off the heating the car immediately switches to EV.
I could get 65 to 70 mpg even in winter by switching off heating when I park, so the engine stays off at startup the next trip. I get out of town first, then switch the heating back on. This minimizes idling a lot. Not suitable when there is a lot of snow or ice or condensation, of course.

NorthWales Peter

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  • My Honda: 2025 Jazz Crosstar
Re: Winter MPG
« Reply #18 on: March 12, 2026, 04:37:53 PM »
Around 64-70mpg.
Its when the temperature increases to around 18-22C, that's when the fuel efficiency of my 2025 Crosstar skyrockets.

Its only ever used premium E5 since ive owned it, showing 8117 miles from new, and its the first car ive seen registering over 100mpg on the fuel computer.

Im taking that figure with a huge pinch of salt, but the cars fuel economy is pretty special.

John Ratsey

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  • My Honda: 2025 Jazz Advance
Re: Winter MPG
« Reply #19 on: March 12, 2026, 06:42:03 PM »
Its only ever used premium E5 since ive owned it, showing 8117 miles from new, and its the first car ive seen registering over 100mpg on the fuel computer.

Im taking that figure with a huge pinch of salt, but the cars fuel economy is pretty special.
A height difference between one end of a journey and the other end can make a big difference to the reported mpg. The wind can also have a noticeable effect. You need to use the average of both legs of a return trip.
2025 Jazz Advance, previously 2022 HR-V Elegance, previously 2020 Jazz Crosstar

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