Premium petrol

[Jonathan A]

Hello!

I am new to this forum and this is like my second post but here goes...

I have been riding a CPI Sprint 125 for about three months now, and whenever I fill her up with unleaded, I ponder as to whether I could be using premium unleaded.

would premium fuel have any effect on a 125?

[arry]

In short, regular 95 ron is fine in about 95% of bikes IMO. The ones that aren't going to be fine are ones that aren't mapped for 95, and are mapped for super unleaded.

A 125 is more than likely going to run absolutely fine on 95 and you're not going to notice any real difference on the super as it's not mapped for it. Altering the map with some more advance to make use of the extra octane would see a small benefit, but otherwise just stick to standard cheap 95.

[Trasler]

My 125 has a MPG of 80ish.
I'm not gonna spend HUGE amounts more if i buy premium, so i do.

I figure, i dont have to buy it all the time, it goes a long way and it must help you bike a little better then normal. So i pay the extra 70p xD
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Current Bike: 2005 Suzuki EN125-2A Grey.
Dream Bikes: Harley Davidson Roadster 883, Triumph Bonneville (British Racing Green) and Norton Commando 961.

[Jonathan A]

so i wont be looking at much of a performance increase...

[arry]

[Kradmelder]

Iam at altitude here so can get by with lower octane. 95 here is super. 93 is regular. My bike is mapped as a KTM LC8 R. That is the higher perfomance mapping. The normal LC8 adv is mapped for lower performance. That means I must use 95. I can use 93, but not at the coast
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2011 KTM 990 Dakar
2009 BMW 1200 GS

[Andy_Pagin]

[blurredman]

[Kickstart]

[slamminorion]

I always used to put £30 of 98RON in my car tank every month an then use the normal 95RON all the rest of the time, i was told that it helps clear the fuel lines/injectors etc....

In a bike i would have thought it would do the same??
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Music is a moral law.
It gives soul to the universe, wings to the mind, flight to the imagination, and charm to life and to everything
We are the music makers & we are the dreamers of the dreams.

[Kradmelder]

I dont think it is the fuel so much that will give you more power. the engine is mapped for more power and needs the higher octane to prevent pinging (pre mature ignition).
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2011 KTM 990 Dakar
2009 BMW 1200 GS

[dungbug]

Tried using 'premium' unleaded with my old 125 for a while, didn't notice any difference. Went back to the standard unleaded with a shot of Redex.
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CBT: Pass 25/06/2011 Theory Test: Pass12/06/2012 Mod 1: Fail 08/07/2012
Mod 1 Retest: Pass 15/0702012 Mod 2: Pass 03/08/2012
Suzuki GN125 (Sold) ~ Current bike: Yamaha YZF 600R Thundercat

[Andy_Pagin]

[The Artist]

It will make absolutely no difference. It is the octane rating which is related to the compression of your engine.

Higher octane fuels are designed for high performance tuned engines. You can get 100RON at some racetracks.

It is a total waste of money. It does not clear out fuel lines or injectors. It is there for people who run specially tuned engines / people who don't know what it is and want to pay more for their petrol.

[map]

[The Artist]

I liken to the word "Redex" to the word "Placebo"

The guy who invented that red liquid must be laughing all the way to the bank. Sure, someone somewhere may benefit from it but I find it hard to believe it does anything in 99% of engines.

[blito]

The CPI Sprint is a nice looking 125 machine, with a hint of 1960s BSA cafe racer about it. The bike is a Taiwanese design license built in China as far as I know and shares some components with a number of other Chinese/Taiwanese bikes.
The Engine is a CG-derived pushrod unit fed through the usual basic chinky carburetor. Fueling this bike with premium super-unleaded would be a waste of time IMO as the engine/carb is designed for the global-standard 95 octane fuel.
Interesting to note that CPI are offering 3 year warranties on new bikes. Less impressed with the spares backup though - a google search isn't showing many avenues of supply for parts
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2012 Zontes Monster

[Kickstart]

[WannaBeDude]

[The Artist]

[Kingstondavo]

Hi octane petrol makes my bike run like utter crap. Put it in once. never again.
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Current Ride - 2010 Hornet 600

[WannaBeDude]

My point is i use it the odd time at 33 p a throw, your point is not backed up by anything but what you've heard ...

Prove that redex has no benefits or STFU.

You'd say the vpower etc i use is just placebo, but i've tested many a comparison, and the bike DOES run better on it.
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Jogging on, destination living.

[The Artist]

[Andy_Pagin]

[WannaBeDude]

I said

I would agree with that, but i dont know,

You said

I liken to the word "Redex" to the word "Placebo"

The guy who invented that red liquid must be laughing all the way to the bank. Sure, someone somewhere may benefit from it but I find it hard to believe it does anything in 99% of engines.

Yet YOU dont back it up with anything ? I'm not the one saying redex does or does not work, as for vpower, in my bike it works better.
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Jogging on, destination living.