Gasoline: premium vs regular - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 95 (permalink) Old 08-02-2013, 10:56 PM Thread Starter
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Gasoline: premium vs regular

I have always used premium gas in my bike so far.Does anyone have an opinion on how this could effect my ride ?..looking for pros and cons.
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post #2 of 95 (permalink) Old 08-02-2013, 11:22 PM
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When you say "premium" I think of a higher octane fuel... Higher octane is more resistant to burning, to prevent pre-ignition of the fuel in the cylinder before the spark plug ignites it... Usually this happens because of engine temperature or compression, or both... A liquid cooled bike like the C-50 without high compression is made to burn standard 87 octane unleaded fuel. Running a higher Octane fuel is not really necessary to prevent knocks and pinging like it would be in a higher compression engine. As a matter of fact there are mechanics that I know, that state burning a higher octane fuel in an engine that doesn't require it, can lead to incomplete combustion and carbon buildup. At best, it amounts to spending more for gas than you need to. But a good quality of fuel is important, no matter what octane you choose...

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post #3 of 95 (permalink) Old 08-03-2013, 12:12 AM
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The bike runs better on regular.


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post #4 of 95 (permalink) Old 08-03-2013, 12:41 AM
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Quote:
Originally Posted by lioness View Post
I have always used premium gas in my bike so far.Does anyone have an opinion on how this could effect my ride ?..looking for pros and cons.
Are you kidding me?!

I think your just trying to start a fight.

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Oh ya ............. premium ............. in everything!

I consistently get better mileage.
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post #5 of 95 (permalink) Old 08-03-2013, 12:53 AM
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I've got the popcorn for this one! Page 20, here we come!



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post #6 of 95 (permalink) Old 08-03-2013, 01:19 AM
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.... Extra butter please


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post #7 of 95 (permalink) Old 08-03-2013, 01:58 AM
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Higher octane, low compression engine flux capacitor bla bla bla...

You can run the cheapy old regular ... unless you can't.

We have an 05 C50 and C90. They get top tier premium in the highest octane we can get out here in California. We do brew our own fuel here though.

If they get the cheap 87, Arco, etc. they run like crap and get awful mileage.

Somewhere around here I posted the owners manual and the repair manual pages...the ones that say octane of 91

But that was years ago during the first "what kind of fuel" war, which I think was right after the "what kind of oil" war...

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post #8 of 95 (permalink) Old 08-03-2013, 05:11 AM
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The manual page saying 91 refers to overseas octane ratings, not US R+M ratings.
87 should give more power. Who knows, every engine is different.

I may try some 91, see what happens to mileage!

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post #9 of 95 (permalink) Old 08-03-2013, 06:40 AM
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This FI engine runs smoother on 90 or above. Now someone please tell us why. If you don't don't know why then please don't waste our time with your nonsense. Answers that start with "I feel" or "I think" simply DO NOT belong here.
Now, put that in your pipe and smoke it.

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post #10 of 95 (permalink) Old 08-03-2013, 07:35 AM
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Follow these simple steps and find out the pros and cons for yourself:

1) run the bike dry of fuel. (Or close to dry)
2) fill the tank with regular old 87.
3) set the trip.
4) run that tank til it's almost gone.
5) fill the tank again but with premium gas.
6) set trip again (but remember the mileage from the first tank)
7) run that tank almost empty.

You'll figure out two things from this simple experiment. One: you'll notice a difference in how the bike performs and feels. Let the bike make the decision! Does the bike run rough on regular gas? Then don't use it. Simple. Two: you'll figure out which gas provides more miles per gallon for your bike. I'd bet that the gasoline that provides more mpg will the one your bike seems to "like" better. Go with that one. Again, simple. All the other bs is just that...bs. everyone has their opinion based on what they've heard about what gas does to a motor. Has anyone here run regular gas and premium gas through two separate but identical motorcycles for 15 years and then pulled apart the motor to see what happened? Possible I suppose. But doubtful nonetheless. So take opinions (which are generally biased) with a grain of salt. Do your own tests and make the decision for yourself. Hope this helps. Ride safe everyone
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