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Bouncer Sargeant
Joined: 24 Jun 2007 Posts: 61 Location: Edinburgh
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Posted: Fri Nov 09, 2007 11:35 am Post subject: normal or hi octane? |
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Recently chatting with a biker (never a good idea, I know) who told me to fill my 125 with hi octane performance fuel as I'd get better economy as well as responsiveness . Is this a good idea or would I be wasting my money? |
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Bigianscooter Guvernor
Joined: 22 May 2007 Posts: 700
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Posted: Fri Nov 09, 2007 12:03 pm Post subject: |
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I'm no expert but always run mine on high octane especially on a long run
Big Ian |
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Tinman
Joined: 25 Jul 2007 Posts: 22 Location: Perth. Western Australia
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Posted: Fri Nov 09, 2007 2:22 pm Post subject: |
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Same here. Always run the GTS250ie on 98 octane premium unleaded.
I figure that it is so cheap to fill up anyway.......why be a complete tightarse?
My car on the other hand, is a Ford Falcon Futura. That gets bog standard unleaded
Still runs like a champ though, but only gets out of the garage if I have a weeks shopping to do or the weather is crap (which is rare here). |
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Bouncer Sargeant
Joined: 24 Jun 2007 Posts: 61 Location: Edinburgh
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Posted: Fri Nov 09, 2007 5:47 pm Post subject: |
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I know it works good for the big 250's it's the little 125cc that I was really asking about.
I think Oz petrol is probably a lot cheaper than what we pay here in old blighty anyway |
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smirnoff Site Admin
Joined: 14 May 2007 Posts: 1125 Location: On the bouncy castle in my head.
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Posted: Fri Nov 09, 2007 6:33 pm Post subject: |
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Allways use super unleaded unless I'm desperate for fuel and the garage does'nt have any. _________________
PHIL.... |
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Maver Site Admin
Joined: 14 May 2007 Posts: 2193 Location: naaaaaarfolk we drive tractors and talk loike PIRATES
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Posted: Fri Nov 09, 2007 7:05 pm Post subject: |
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always run mine on premium unleaded
have been told there's little or no benefit, it just makes me feel better _________________
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jbhoy67 Inspector
Joined: 28 Jul 2007 Posts: 188 Location: glasgow
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Posted: Fri Nov 09, 2007 9:11 pm Post subject: |
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Me to always _________________ VILA LA QUINTA BRIGADA |
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Quasimodem
Joined: 02 Aug 2007 Posts: 15 Location: Cornwall
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Posted: Sat Nov 10, 2007 9:41 am Post subject: |
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Not fully run in yet but tried 95 and got some pinking......a tinny rattle at low RPM on gradual hills. Switched to Shell V-Power and it the scoot seems quicker with no rattle. 97 is OK too but will stick with the Shell stuff. |
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geetee1 troop
Joined: 15 Sep 2007 Posts: 42 Location: darlington uk
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Posted: Sat Nov 10, 2007 11:53 am Post subject: |
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having recently bought a gts (wife & i travelled by train from darlington to tiverton, devon) rode back, kept topping tank up with all type,s of petrol on long (342 mile,s door to door) journey home, i found the last fill up was with v-power and the scoot definately preformed better on it (many thank,s to richard tiverton for a fine well looked after machine) ps doesnt like o/s/r indicator bulb,s though. _________________ if it,s got tit,s, tyre,s, or electronic,s it,s gonna give you problem,s!!! |
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Rub Sargeant
Joined: 07 Jul 2007 Posts: 50 Location: Qualicum Beach BC
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Posted: Sat Nov 10, 2007 10:50 pm Post subject: |
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Use whatever is recommended by the manufacturer. Octane rating is the measure by how much gasoline can be compressed before it self ignites (detonates), (in extreme cases, known as dieseling, when you turn the key off and the thing just keeps running *does not apply to electronic fuel injected motors that shut off the fuel flow*).
The higher the compression ratio, the greater the need for higher octane fuel to reduce/eliminate knocking and pinging caused by detonation. Detonation can cause extremely high pressures in the combustion chamber leading to engine stress and failure. It can also lead to extremely high temperatures in the combustion chamber with increased wear and eventually failure of internal parts.
Using higher octane gasoline than recommended will not hurt your engine but will not give any improved performance. (Although many, many people claim it does from seat of the pants feel).
Using lower grade fuel than recommended can cause engine wear and in extreme cases, failure.
Octane is not a performance additive.
Dave |
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Bouncer Sargeant
Joined: 24 Jun 2007 Posts: 61 Location: Edinburgh
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Posted: Sun Nov 11, 2007 6:08 pm Post subject: |
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Thanks Dave for the comprehensive answer - I think! The big question is surely what do Piaggio recommend and will higher octane fuel damage the engine over time?
I guess I should be keeping the tank filled with bog standard unleaded if the manual is anything to go by. Which it usually is |
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Outlaw Inspector
Joined: 16 May 2007 Posts: 452 Location: Sitting at the Rugby Club Bar
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Posted: Sun Nov 11, 2007 6:56 pm Post subject: |
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Usually normal unleaded for me aswell _________________ Whats a Clutch !!!! |
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Scootaboy Inspector
Joined: 29 Jul 2007 Posts: 225 Location: London
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Posted: Mon Nov 12, 2007 12:01 am Post subject: |
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premium if available, else not! _________________
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Tinman
Joined: 25 Jul 2007 Posts: 22 Location: Perth. Western Australia
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Posted: Mon Nov 12, 2007 1:27 pm Post subject: |
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Bouncer wrote: | Thanks Dave for the comprehensive answer - I think! The big question is surely what do Piaggio recommend and will higher octane fuel damage the engine over time?
I guess I should be keeping the tank filled with bog standard unleaded if the manual is anything to go by. Which it usually is |
Bog standard here in Oz is 92. The manual (from memory - so I could be wrong), says minimum 95.
Higher octane fuel won't damage your engine, but lower might. |
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Bouncer Sargeant
Joined: 24 Jun 2007 Posts: 61 Location: Edinburgh
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Posted: Mon Nov 12, 2007 5:08 pm Post subject: |
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Fuel economy is allegedly the biggest benefit - I'll get back to you on this once Ive gone through a whole tank. Bog standard unleaded gave me 160km.If I hit 200km I'll be happy to keep up the hi octane diet. |
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