Winter fuel already out in US? - Insight Central: Honda Insight Forum
 
Go Back   Insight Central: Honda Insight Forum > 2nd Generation Honda Insight Forum > Honda Insight MPG

Insightcentral.net is the premier Honda Insight Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 10-19-2015, 12:29 PM   #1 (permalink)
Senior Member
 
newscast's Avatar
 
Join Date: Apr 2014
Location: Madison, Wisconsin
Posts: 201
Default Winter fuel already out in US?

I've noticed a pretty decent drop in MPG recently. I was wondering if maybe winter fuel was being rolled out, or if my driving habits have changed that much since I put my Bernie 2016 sticker on my car
newscast is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-19-2015, 12:32 PM   #2 (permalink)
Senior Member
 
Uriel's Avatar
 
Join Date: Aug 2011
Location: Sheffield, UK
Posts: 943
Default

Don't know about US. In the UK it's Winter blend from October 15th to April 15th. They have an intermediate blend for most of the rest of the year and a kind of peak summer blend for sometime around mid June to Mid August - art least according to a document I saw from Shell.
__________________
2010 Honda Insight ES 1.3 IMA (UK)
Uriel is offline   Reply With Quote Quick reply to this message
Old 10-19-2015, 02:52 PM   #3 (permalink)
Premium Member
 
Balto's Avatar
 
Join Date: Aug 2014
Location: Apple Valley, CA
Posts: 1,751
Default

Definitely believe we are on winter blend now. My city MPG dropped about 5, and my last tank of gas was the lowest I have had since last winter.
__________________
Those who give up who they are for who they hang out with will never truly belong.

~The weirdest fur you will ever meet O.o rwar!
Balto is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-03-2016, 08:37 PM   #4 (permalink)
Senior Member
 
Join Date: Mar 2014
Location: North Jersey
Posts: 230
Default

Winter Fuel is 10% Ethanol, 20% Butane, 70% Gasolene

Gasolene = 32.4 MJ/L

Butane = 26 MJ/L

Ethanol = 20.9 MJ/L

For every 10L you buy instead of 324 MJ pure gasoline you get (7 * 32.4) + (2 * 26) + (1 * 20.9) = 227 + 52 + 20 = 300 MJ

or for E10 (324 * 9) + 20.9 = 291.6 + 20.9 = 312.5 MJ

So you should expect an 8% decrease in fuel mileage vs pure gasoline or 4% decrease vs E10 (which itself is 4% below pure gasoline).

Obviously, other things effect fuel mileage.

Last edited by BackStreet; 02-03-2016 at 09:12 PM.
BackStreet is offline   Reply With Quote Quick reply to this message
Old 04-03-2016, 09:58 PM   #5 (permalink)
Junior Member
 
Join Date: Feb 2015
Location: Florida Keys, U.S.A.
Posts: 27
Default Year round summer

Winter blend...

no such thing down here.
Rick330man is offline   Reply With Quote Quick reply to this message
Old 04-04-2016, 03:05 PM   #6 (permalink)
Senior Member
 
olrowdy01's Avatar
 
Join Date: Sep 2012
Location: SE Fla
Posts: 1,712
Default

Quote:
Originally Posted by Rick330man View Post
Winter blend...

no such thing down here.
Winter? No such thing here either.
__________________
2005 Insight, MT, 88K, Silver
1988 Honda CRX HF, 44/51 mpg
To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

1963 Lotus 7 replica, 12 mpg
To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

1962 Henny Kilowatt, 40 miles/charge @ 40 mph

My website
To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

* Hack your OBDIIc&c
* Cool the IMA battery
* DIY Fix rear motor mount
* DIY Grid charger/discharger build instructions etc
* My grid charger/discharger thread on the forum
To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.
olrowdy01 is offline   Reply With Quote Quick reply to this message
Old 04-04-2016, 11:32 PM   #7 (permalink)
Senior Member
 
AbCaRed00's Avatar
 
Join Date: Mar 2011
Location: 🇨🇦
Posts: 1,558
Default

Quote:
Originally Posted by BackStreet View Post
Winter Fuel is 10% Ethanol, 20% Butane, 70% Gasoline

So you should expect an 8% decrease in fuel mileage vs pure gasoline or 4% decrease vs E10 (which itself is 4% below pure gasoline).

Obviously, other things effect fuel mileage.
Thanks for posting this. I was unaware that much % butane goes into winter gasoline and this explains a few things to me.
The vapor pressure with warming butane may explain a transitory EVAP error code that crops up on my gen-1 car: sometimes occurring only in early springtime when temperatures get warmer.
This also may explain why the OBDIIC&C Gauge A/F parameter reads a value for stoichiometric ratio of only 14.3:1 vs. 14.7:1. [the MTBE, EtOh; C4H10, etc.]
fwiw: info indicates that the amount of oxygen contribution to winter fuel blend ranges up to 28% in some blends.
__________________


To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 2 or greater. You currently have 0 posts.

\_(ツ)_/
\ /
/\
[/SIZE]
AbCaRed00 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Insight Central: Honda Insight Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.3

All times are GMT -4. The time now is 11:29 PM.



Powered by vBulletin® Copyright ©2000 - 2019, vBulletin Solutions, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.