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Old 10-29-2012, 10:32 PM   #1
Captain Pubic
Juilin's Avatar
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Joined: Aug 2012
From: Seattle

I Ride: Ninja 650 or somebody elses.
What kind of change in gas mileage for fall/winter?
Curious, being my first full time winter riding stint. My gas mileage has take a pretty big dip.

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Old 10-29-2012, 10:49 PM   #2
Novice Racer
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Joined: Sep 2007
From: Kent, WA

I Ride: 05 KTM 625 SMC
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.

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Old 10-29-2012, 10:50 PM   #3
Licensed
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Joined: May 2011
From: Sammamish, WA

I Ride: Ducati Multistrada 1200S
That's weird I have never noticed a difference!

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Old 10-29-2012, 10:54 PM   #4
I bathe with candles, flowers, jazz music, and rubber ducky.
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Joined: Jun 2008
From: Beijing
Blog Entries: 4

I Ride: in my wet dreams
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.

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Old 10-29-2012, 10:55 PM   #5
I bathe with candles, flowers, jazz music, and rubber ducky.
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Joined: Jun 2008
From: Beijing
Blog Entries: 4

I Ride: in my wet dreams
Besides, it's not even winter yet...

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Old 10-29-2012, 10:58 PM   #6
Licensed
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Joined: May 2011
From: Sammamish, WA

I Ride: Ducati Multistrada 1200S
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.

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Old 10-30-2012, 06:32 AM   #7
Superbiker
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Joined: Mar 2008
From: Everett, WA

I Ride: Motorcycle
“ Quote:
Originally Posted by PWALL View Post
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.
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.

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Old 10-30-2012, 07:37 AM   #8
Captain Pubic
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Joined: Aug 2012
From: Seattle

I Ride: Ninja 650 or somebody elses.
“ Quote:
Originally Posted by RC51 View Post
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.
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.

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Old 10-30-2012, 07:41 AM   #9
Moto2 Contender
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Joined: Oct 2007
From: from Wa, living on Grenada (island)

I Ride: 1991 XR250L, 2007 BMW F800S, 1999 ATK 605 ESDS/SM
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.

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Old 10-30-2012, 07:53 AM   #10
Superbiker
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Joined: Mar 2008
From: Everett, WA

I Ride: Motorcycle
“ Quote:
Originally Posted by Juilin View Post
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.
It's pricey everywhere. I found a guy who swaps with me every year.

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Old 10-30-2012, 07:56 AM   #11
Bat Crazed
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Joined: May 2009
From: WA
“ Quote:
Originally Posted by PWALL View Post
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.


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



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Old 10-30-2012, 08:43 AM   #12
Superbiker
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Joined: Feb 2010
From: Seattle, Wa

I Ride: 2012 RSV4 Factory APRC with OPRT
“ Quote:
Originally Posted by Jims08Z06 View Post


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


I figured back in your day, horses and mules were the method you used...

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Old 10-30-2012, 09:13 AM   #13
Licensed
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Joined: Jul 2010
From: The dark side

I Ride: Wrapped in leather, poly carbonate, kevlar and carbon fiber, from head to toe.
Um.....it 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 ).

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Old 10-30-2012, 09:49 AM   #14
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Joined: Jul 2011
From: Kent. WA

I Ride: 2011 Hayabusa
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.

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Old 10-30-2012, 10:05 AM   #15
Track School Dazed
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Joined: Oct 2005
From: CENTRAL

I Ride: When I can
Talking Don't Forget 'Blinker Fluid', too!

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Old 10-30-2012, 10:21 AM   #16
Moderator
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Joined: Feb 2008
From: Mill Creek, Wa

I Ride: slower than you with a bigger grin!
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.

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Old 10-30-2012, 10:28 AM   #17
Je Fa Fa
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Joined: Mar 2007
From: Monroe-mish, WA
Blog Entries: 5

I Ride: 07 YZ450F, 74 XL350
what have you done to the bike?

besides leaving shit unplugged, having it dyno tuned, and dicking with the brake lines?

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Old 10-30-2012, 12:38 PM   #18
Peg Dragger
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Joined: Jul 2011
From: west coastin

I Ride: with a smile
http://www.youtube.com/watch?feature...&v=SiabeNR_q0U

someone got a green dot.

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Old 10-30-2012, 12:44 PM   #19
Licensed
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Joined: Jun 2012
From: Shoreline, WA

I Ride: '08 Versys '82 XJ750J Maxim
What kind of oil are you using? make sure it's cold tolerant.

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Old 10-30-2012, 04:24 PM   #20
Shredder
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Joined: May 2009
From: On a hill over looking a valley.

I Ride: one with 117.8whp/liter
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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