Gas - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 02-21-2012, 11:50 PM Thread Starter
Senior Member
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 199
Gas

Ok I thought I saw this thread on here but I did a search and it came up empty. Do you use regular or super? We have been putting super in mine since I bought it since that is what he puts in his HD. I have the 1600 Roadstar.

Thanks

Only a biker knows why a dog sticks his head out of a car window. ~Author Unknown
newbie is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 02-22-2012, 12:04 AM
Super Moderator
 
bevo1981's Avatar
 
Join Date: Apr 2009
Location: Austin
Posts: 12,979
there are threads about octane. that's octane. you should use whichever octane rating your bike suggests. i believe yours only requires the 87 octane gas which is regular. the compression of your particular engine cannot even detonate the higher octane fuels as efficiently as the 87 octane gas. so don't put in the more expensive gas just because someone else puts it in theirs. maybe their engine compression is geared to use the higher octane which has nothing to do with your bike. so use regular. the word, again, is octane.
bevo1981 is online now  
post #3 of 14 (permalink) Old 02-22-2012, 12:11 AM Thread Starter
Senior Member
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 199
Are you trying to sound like a complete jerk in your response? I know sometimes someone can read something the wrong way just trying to see if that was the case.

Only a biker knows why a dog sticks his head out of a car window. ~Author Unknown
newbie is offline  
Sponsored Links
Advertisement
 
post #4 of 14 (permalink) Old 02-22-2012, 12:14 AM
Senior Member
 
Join Date: Oct 2011
Location: Buffalo NY
Posts: 570
Didnt sound jerky too me...Hes right..all engines are different, For example youre gonna have to run premium in a 911 but in a corolla you dont need it at all , lol...Our Vstar 1100s have a pretty low compression ratio of 8.3:1 or 8.6:1 i think...no need at all for premium. Not sure about roadstars however...


Higher octane gas is needed in engine with higher compression ratios to prevent things such as knock.... http://en.wikipedia.org/wiki/Engine_knocking

2013 H-D FXS Blackline
2006 V-Star 1100 Classic
1980 XS650 Bob (in progress)
1981 XS650

USMC - 0331 - OEF

Last edited by BP03; 02-22-2012 at 12:17 AM.
BP03 is offline  
post #5 of 14 (permalink) Old 02-22-2012, 12:26 AM
Senior Member
 
hdeater113's Avatar
 
Join Date: Mar 2011
Location: rainy side of washington state now reside in Blackfoot,Idaho
Posts: 1,452
Newbie, I checked the 1600 manual and it states that you use regular fuel.So save some money and burn the regular.You can run the premium since you live in the warm side of the earth.In the colder states it could cause some hard starting issues or poor running when the bike is cold.

2007 Stratoliner S
Reckless batwing
Sony am/fm cd mp3 4 speakers w/500 watt amp,8in sub
12 inch ape hanger bars
Roadhouse slip on exhaust
K&N air filter with lid mod
Cobra Fi2000 powrpro auto tuner
Kuryakyn mustache bar
Corbin low profile solo seat
LED running lights front and rear
21 inch chrome raider front wheel
200 tire on the rear
113 Hd eating tire smoking cubic inches
hdeater113 is offline  
post #6 of 14 (permalink) Old 02-22-2012, 12:40 AM Thread Starter
Senior Member
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 199
Thanks HD. I thought I had read that on here I dont have the manuel since I bought the bike used. I just down loaded the manuel so I had it for future questions. I was having trouble on our last long trip when we hit alltitude. I started to back fire anytime I left off the throttle as soon as we got over the moutains it was fine again. He normally just fills my tank after his and just uses the same grade. With this run coming up and them fueling up 300 bikes in 20 minutes I wanted to make sure I was in the correct lane. They said they have a Harley lane and another lane (one being Regular and one being premium). It made me question my boyfriend again on if I really needed to be using premium everytime we fuel. I know it is not that big of a difference in price but was not sure if it could change my performance.

Only a biker knows why a dog sticks his head out of a car window. ~Author Unknown
newbie is offline  
post #7 of 14 (permalink) Old 02-22-2012, 12:40 AM Thread Starter
Senior Member
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 199
wow my spelling is horrible above. LOL I must be tired and my fingers are not keeping up with my brain.

Only a biker knows why a dog sticks his head out of a car window. ~Author Unknown
newbie is offline  
post #8 of 14 (permalink) Old 02-22-2012, 12:49 AM
Senior Member
 
hdeater113's Avatar
 
Join Date: Mar 2011
Location: rainy side of washington state now reside in Blackfoot,Idaho
Posts: 1,452
The back firing at higher altitude is pretty much normal for a carburated bike.

2007 Stratoliner S
Reckless batwing
Sony am/fm cd mp3 4 speakers w/500 watt amp,8in sub
12 inch ape hanger bars
Roadhouse slip on exhaust
K&N air filter with lid mod
Cobra Fi2000 powrpro auto tuner
Kuryakyn mustache bar
Corbin low profile solo seat
LED running lights front and rear
21 inch chrome raider front wheel
200 tire on the rear
113 Hd eating tire smoking cubic inches
hdeater113 is offline  
post #9 of 14 (permalink) Old 02-22-2012, 04:20 AM
Super Moderator
 
bevo1981's Avatar
 
Join Date: Apr 2009
Location: Austin
Posts: 12,979
Quote:
Originally Posted by newbie View Post
Are you trying to sound like a complete jerk in your response? I know sometimes someone can read something the wrong way just trying to see if that was the case.
i thought i was answering your question. and i wanted to see how many times i could use the word octane in one post as an inside joke since there's been a lot of discussion on here about gas and octane, sometimes heated. here's a couple threads and count the number of times the word octane is used:

https://www.starbikeforums.com/forums...ghlight=octane

https://www.starbikeforums.com/forums...ghlight=octane



as described by the Minnesota Department of Commerce:

Octane is a measure of a fuel's tendency to knock or ping when it is mixed with air and burned in the cylinder of an engine. this octane rating is not based on the amount of cheical octane in the gasoline. the rating is called octane because the gasoline's ability to prevent engine knock has been rated against the performance of pure hydrocarbon octane, which has a rating of 100. gasoline, which is made from a blend of many other hydrocarbons, may have a higher or lower rating, depending on how its anti-knock performance compares to the performance of pure hydrocarbon octane.



some octane myths:

high octane gasoline improves mileage.
-in general, if your vehicle is designed to run on 87 octane gasoline, high octane gasoline will not improve mileage. if switching to high octane gasoline does improve mileage, you might find that your engine, or its control systems, need repair.

high octane gasoline gives quicker starting.
-it doesn't

high octane gasoline increases power.
-if your vehicle is designed to run on 87 octane gasoline, you shouldn't notice any more power on high octane gasoline. again, if it does make a noticeable difference, your engine, or the engine's electronic control systems, may need repair

high octane gasoline has been refined more and is just a better product.
-additional refining steps are used to increase the octane; however, these additional steps do not make the gasoline a 'better' product for all engines. they just yield a different blend of hydrocarbons that burn more slowly. the additional steps also increase the price.
bevo1981 is online now  
post #10 of 14 (permalink) Old 02-22-2012, 11:13 AM
Banned
 
Join Date: Aug 2010
Posts: 4,088
The wording is tricky as the inverse may be a better way to think about it. The higher the octane the LESS likely the air/fuel mixture will pre-ignite (ping or knock) during the compression stroke. So using low octane in a high compression ratio engine may cause the air/fuel mixture to "fire" before top-dead-center and self ignite before the spark plug fires. So high octane, in a otherwise well tuned low compression ratio engine would not cause a ping or a knock, it certainly is a waste of money if your engine doesn't need it.




Last edited by stratowart; 02-22-2012 at 11:16 AM.
stratowart is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome