Cooler weather=lower mpg??? - 1130cc.com: The #1 Harley Davidson V-Rod Forum
» Insurance
» Sponsors
Go Back   1130cc.com: The #1 Harley Davidson V-Rod Forum > V-ROD Discussions > V-ROD Mechanical
New User? Register - Forgot Password

Reply
 
Thread Tools Display Modes
Old 11-03-2012, 01:07 PM   #1
Mxdad430
Registered User
 
Join Date: Jul 2012
Location: Cabot,Arkansas
Posts: 5
Feedback Score: 0 reviews
Cooler weather=lower mpg???

So this summer I was getting nearly 40mpg. Now the cooler weather hits and I can barely get 25-30. Granted I've gotten more comfortable on this VRSCDX of mine but dropping 10-15mpg? It's an 07' with 5200 miles on it. Any O2 sensors on this thing? Any thoughts would be a great help...
Mxdad430 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-03-2012, 01:46 PM   #2
HoneyB
Pat (Patrick!)
 
HoneyB's Avatar
 
Join Date: Apr 2007
Location: No. Central CT
Posts: 11,175
Images: 14
Feedback Score: 31 reviews
FWIW: My '04 runs stronger in cool weather, so I tend to twist the throttle more, leading to worse mileage!
In the Northeast we also have Oxygenated Gas, in the colder months, which leads to poor mileage.
__________________
'04 VRSCB, SERF, Amsoil air filter & oil, Drilled Exhaust, Arlen Ness Mirrors, relocated Signals, Sundowner seat,
Tiger Racing belt guards, Pondo's pivot bolt covers & 'V' valve stem caps, Tyson's black riser and foot levers, Metzler ME 880's, black 5 spoke '08D wheels and rear pulley, Mini LED rear signals, Progressive suspension, Jeannie Guardian Bell!(so far!)

1978 Honda XL350 (w/4300 miles on it!)

Jedi:"It's free to be a member, but it'll cost your ass in the end..."
HoneyB is offline   Reply With Quote
Old 11-03-2012, 02:39 PM   #3
lastinline
on the hwy to hell
 
lastinline's Avatar
 
Join Date: Mar 2011
Location: North Richland Hills Texas
Posts: 5,025
Feedback Score: 14 reviews
Mine likes the hot weather better than the cold but then so do I as far as mileage I just gas up when it needs it


Sent from my iPhone using Motorcycle.com Free App
__________________
09 Red Hot Sunglow VRSCF
lastinline is offline   Reply With Quote
Old 11-05-2012, 03:15 PM   #4
rc4man
EXCELSIOR
 
rc4man's Avatar
 
Join Date: Jun 2004
Location: Out there
Posts: 6,970
Feedback Score: 2 reviews
Slower warm up times with related longer enrichment period, harder running as breakin progresses could be possible causes.
__________________
"V" Rod Forman, '04 Anodized "B", 50th B-day gift from wife. http://www.mem.com/Story.aspx?ID=2528706
rc4man is offline   Reply With Quote
Old 11-05-2012, 03:23 PM   #5
Mxdad430
Registered User
 
Join Date: Jul 2012
Location: Cabot,Arkansas
Posts: 5
Feedback Score: 0 reviews
Well I'll just keep putting the gas in it. I bet the govt loves that winter blend.... Lower mileage and higher gas use... I'll see what happens come springtime. It's to fun not to ride all winter...
Mxdad430 is offline   Reply With Quote
Old 11-06-2012, 03:46 PM   #6
gator582
Retired, Not SLOW!
 
gator582's Avatar
 
Join Date: Jul 2008
Location: Piney Woods of Deep East Texas
Posts: 5,882
Images: 6
Feedback Score: 10 reviews
Quote:
Originally Posted by Mxdad430 View Post
... Any O2 sensors on this thing? ...
No O2 sensors on stock '07 models.
__________________
DIRE HIS NIKS!!!
gator582 is offline   Reply With Quote
Old 11-06-2012, 03:48 PM   #7
rbabos
Registered Full
 
Join Date: Jul 2012
Location: Woodstock Ontario Canada
Posts: 838
Feedback Score: 0 reviews
Quote:
Originally Posted by Mxdad430 View Post
Well I'll just keep putting the gas in it. I bet the govt loves that winter blend.... Lower mileage and higher gas use... I'll see what happens come springtime. It's to fun not to ride all winter...
Cold air influences a lot of things. Oil is thicker robbing some power, iat richens the mixture and short trips keeps the engine in rich mode longer. That along with winter grade fuel with ethenol all add up to less milage. My cars milage takes a big dump during winter also.
Ron
rbabos is offline   Reply With Quote
Old 11-06-2012, 03:59 PM   #8
ELUSIVE 1
Lifetime Premium
 
ELUSIVE 1's Avatar
 
Join Date: Mar 2011
Location: The Farm,layin' low
Posts: 955
Feedback Score: 1 reviews
Quote:
Originally Posted by HoneyB View Post
FWIW: My '04 runs stronger in cool weather, so I tend to twist the throttle more, leading to worse mileage!
In the Northeast we also have Oxygenated Gas, in the colder months, which leads to poor mileage.
__________________
I'd rather be on my motorcycle thinking about God, then in church thinking about my motorcycle.
ELUSIVE 1 is offline   Reply With Quote
Old 11-06-2012, 05:26 PM   #9
Philthy
Registered Full
 
Philthy's Avatar
 
Join Date: Jul 2007
Location: Ridgecrest, CA
Posts: 9,332
Images: 1
Feedback Score: 1 reviews
Richness of mixture is affected by coolant temperature. The colder the coolant the richer the mixture. Winter blend fuels are more volatile than summer blends and have more ethanol, reducing fuel mileage some more. I see a 5-8 mpg drop in mlieage during the winter months on the V-Rods and the fuel injected BMWs, but not on the carbureted R-80G/S.
__________________
The pilot is always the first person at the scene of the crash.
Philthy is offline   Reply With Quote
Old 11-07-2012, 11:27 AM   #10
BowtieNut
Registered Full
 
BowtieNut's Avatar
 
Join Date: Feb 2011
Location: Mn
Posts: 199
Feedback Score: 4 reviews
Yeah, I'm betting it's the winter blend gas. Around here they have 10% ethanol year-round, and I can usually average 39-40 mpg (I'm usually a pretty mellow rider). This year when I went to Sturgis my mileage jumped to 45-47 mpg. I'm sure part of it is riding with those slow air-heads too though. Got back home and it went right back to 40 mpg. Weather very similar both places, so I think it's gas more than the weather, for me at least.
__________________
2005 Orange VRSCB
BowtieNut is offline   Reply With Quote
Old 11-07-2012, 12:31 PM   #11
Philthy
Registered Full
 
Philthy's Avatar
 
Join Date: Jul 2007
Location: Ridgecrest, CA
Posts: 9,332
Images: 1
Feedback Score: 1 reviews
Quote:
Originally Posted by BowtieNut View Post
Yeah, I'm betting it's the winter blend gas. Around here they have 10% ethanol year-round, and I can usually average 39-40 mpg (I'm usually a pretty mellow rider). This year when I went to Sturgis my mileage jumped to 45-47 mpg. I'm sure part of it is riding with those slow air-heads too though. Got back home and it went right back to 40 mpg. Weather very similar both places, so I think it's gas more than the weather, for me at least.
I'm not sure the degree to which coolant temperature affects the lenght of time the fuel injector is open, or "pulse width", but on my fuel injected BMWs with liquid cooling, the coolant temperature can lengthen or shorten the pulse width by up to 40% depending on temperature. It has a major effect on fuel mileage beyond the effect of winter gas.

The fuel mileage of my Street Rod tracks that of the K-100RS quite closely winter to summer, while the fuel mileage of the R-80G/S, which is carbureted, does not change appreciably. I have to attribute the decrease in mileage to colder temps and colder coolant temperatures more than the change in fuel blend.
__________________
The pilot is always the first person at the scene of the crash.
Philthy is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 09:16 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum