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Octane boosters

4422 Views 11 Replies 8 Participants Last post by  Homyality
Has anyone tried these octane boosters like STP? any difference before and after?
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I have used vp and royal purple (wont use any other brands). I didnt notice a big difference. I make an effort to find ethanol free gas, and was able to find 87 the first time. Only used the booster to get it up towards 91.

Im using 91 ethanol free now. Havent tried the booster with that though
They're a waste. If anything, it would hurt performance and economy. They're "tuned" from the factory for regular gas.
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Don't bother. Waste of money, the engine's not going to get any benefit out of higher AKI/RON.
I'm having vibes from under the seats, pegs and tank and here normal petrol is not that great. I feel that it's mainly due to the fuel. Someone who was having the same issue used this STP octane booster in his R3 and reported that it worked great. And vibes were eliminated.
I'm having vibes from under the seats, pegs and tank and here normal petrol is not that great. I feel that it's mainly due to the fuel. Someone who was having the same issue used this STP octane booster in his R3 and reported that it worked great. And vibes were eliminated.
Well, try it out then. I'd be very skeptical of that, though. I don't see why it would make any difference. Motorcycles are vibey, especially our bikes when they get high in the revs. I notice vibrations on my pegs all the time, and on my handlebars if I'm gripping too tightly.
Well, try it out then. I'd be very skeptical of that, though. I don't see why it would make any difference. Motorcycles are vibey, especially our bikes when they get high in the revs. I notice vibrations on my pegs all the time, and on my handlebars if I'm gripping too tightly.
Yes already ordered one...

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I'm having vibes from under the seats, pegs and tank and here normal petrol is not that great. I feel that it's mainly due to the fuel. Someone who was having the same issue used this STP octane booster in his R3 and reported that it worked great. And vibes were eliminated.
Seems unlikely, from a technical standpoint, and not feelings. Higher octane reduces the energy contained per unit of fuel. Higher octane supports higher compression and turbos.
When those bottles advertise they raise your octane by up to 7 points that isn't 90 to 97.. That's 87 to 87.7. Also, the chemicals used to raise the octane do so via a chemical reaction that has diminishing effectiveness at higher octanes. In other words, these products are like everything else these companies make and are pure snake oil.

If you want to raise your octane, do so by mixing higher octane fuel with lower octane fuel.

Unless you got a bad tank of gas, there is no reason to run this. Your motorcycle will never have issues with 87.

Also, I say this all the time in here. Your motorcycle was tuned to run on 10% ethanol. Paying more for ethanol free fuel is doing you no good. Ethanol is actually a cleaning agent when used in reasonable amounts and burns off just fine. It does have issues in some older systems, but your nice, new, FI bike that was tuned with it in mind will be just fine on it.
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While yes, a bike is tuned to be able to run on ethanol it is in no way a good idea. Ethanol fuel is really really bad for your engine, and doing some research from reputable sources will tell you the same. It is not just oil companies spreading propaganda, it is science.

In Australia at least, the user manual will say that it is tuned for Regular Unleaded (91/93 octane fuel), and it says that E10 fuel is "acceptable". Basically meaning yes, it can run on Ethanol but it is not recommended.
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I only run ethanol free in my car now. It runs a lot better. Being from Ca, they gas there sucked. Moving to Ne, the quality was a lot better. I get better mileage, performance, and maintenance is better( Spark plugs).
While yes, a bike is tuned to be able to run on ethanol it is in no way a good idea. Ethanol fuel is really really bad for your engine, and doing some research from reputable sources will tell you the same. It is not just oil companies spreading propaganda, it is science.

In Australia at least, the user manual will say that it is tuned for Regular Unleaded (91/93 octane fuel), and it says that E10 fuel is "acceptable". Basically meaning yes, it can run on Ethanol but it is not recommended.
Ethanol is bad for engines? Guess I should let my WRX know that after 40k miles of being tuned for E85...

Ethanol is not bad for your vehicle. Period. The two real problems with ethanol are that, as a result of the alcohol that comes with it, it has a habit of absorbing water that pure gasoline would usually just keep spread out and that it can corrode rubber lines. HOWEVER, modern vehicles use components that resist this corrosive breakdown. Your rubber fuel lines will dry and rot from heat before the ethanol takes its toll on it.

Yes, ethanol can be very, very bad in some applications. But if you daily your vehicle, buy quality gas from a top tier gas station, and maintain it properly then those issues will never be your problem.
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