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What kind of change in gas mileage for fall/winter?

Discussion in 'Motorcycle Talk' started by Juilin, Oct 29, 2012.

  1. Juilin

    Juilin Captain Pubic

    Curious, being my first full time winter riding stint. My gas mileage has take a pretty big dip.
  2. Never noticed any change before.

    Never really been too concerned about fuel economy either. It gets what it gets. If I notice a big dip, it's probably because something's wrong.

  3. That's weird I have never noticed a difference!
  4. galenernest

    galenernest I bathe with candles, flowers, jazz music, and rub

    Huh? I've never had a noticeable change in gas mileage. Winter, summer, fall, spring: no significant change.

    What have you experienced? Did you go from 45M/g to 43M/g? There's so many variables that unless you conducted a controlled experiment, you would really have no clue what caused the change in MPG.
  5. galenernest

    galenernest I bathe with candles, flowers, jazz music, and rub

    Besides, it's not even winter yet...
  6. Ok so you are going to need to follow these steps to regain efficiency:

    1. Get tire pressure gauge and pump
    2. Pull bike outside
    3. Let all summer air out of tires
    4. Refill tires with more efficient, denser winter air to correct pressure

    That should fix the issue.
    take risks likes this.
  7. :secret:I get summer air imported from Australia all winter long so I don't have to change it out.

    Your pressure will actually change with the drop in temps (same volume, lower temp = less pressure) so that could be effecting mpg. I've also heard of summer gas vs winter gas rumors, never really saw a huge difference in mpg though.
    Jims08Z06 likes this.
  8. Juilin

    Juilin Captain Pubic

    Where do you source your summer air? I can't find a company in Australia that doesn't charge and arm and leg for shipping.
  9. Unless you're running boost, you shouldn't see a notable change in gas milage.

    You either have something wrong with your bike, or you've changed riding habits.
  10. It's pricey everywhere. I found a guy who swaps with me every year.
  11. Jims08Z06

    Jims08Z06 Bat Crazed


    This is good, I got's a smile even with the rain pouring down.
    I once rode "All" year round, although never checked the mileage.

    When driving my log truck which had twenty tires on the ground I could look back at the records and tell what the weather had done on a specific day. Why, because as the road's became more saturated with water it took more fuel to push Dem tires through the resistance. On especially rainy days this could amount to ten extra gallons at the fuel pumps. Another thing was wind, which caused the Cummins to work a little harder...AJ

  12. I figured back in your day, horses and mules were the method you used... :nana crackup: :mrgreen:
  13. still gets from gas station to gas station on one full tank.
    IMO, if your worried about mileage, you missed the point of being on two wheels (or one :evil4:).
  14. Assuming you are checking your tire pressures regularly as the temps change, the only other reason I can think of is the gas formulas are different in the winter. I had read the the winter formulas have a higher oxygen content and therefore a lower energy content per gallon (Btu/gal). However, I thought they didn't start with the winter formulas until Nov 1st.

    I check my mileage every fill-up and I have noticed a slight drop in mileage with my cars between Nov 1st and March 1st. I always attributed that to the formulas. Yes I do check my tire pressures often so that's not the reason. Gas mileage on the bike?...I check it regularly but don't worry too much about it. It is what it is and it's a lot better than the cars.
  15. Grantizzle

    Grantizzle Moderator Staff Member

    Op, your recent dyno tune could have made a difference in fuel consumption due to the throttle cables going to their widest open position more often and for longer periods of time than before the magic.
  16. what have you done to the bike?

    besides leaving shit unplugged, having it dyno tuned, and dicking with the brake lines?
  17. What kind of oil are you using? make sure it's cold tolerant.
  18. If I rode differently in the shitty season, I'd expect to see a difference. But I don't, so I expect nothing.
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