Topic Approved.

Octane boosters are not good for your engine. Most are quite corrosive.

I have never used one, nor have heard from anyone that they work as efficiently as a 95 octane fuel.
But Bunny, please let us know more about your bike and everything and make a thread about it. Sorry if I sound repetitive
Once again, congrats !

Who or how did you confirm that speed97 is 97 RON?

I think octane boosters were used by KenDa. It works pretty well, as far as I remember.... Waiting for more info..... It was something like getting the mixture ratio correct, and things go smooth....

@Streetfighter : The Bharat pertrolem website specifies this BPCL SPEED 97
if you can belive them that is...


STP is the one avaiable and used by some members.

Sadly on the various review website no useful review is available as all evaluation are asuming you alrady have 95 octane fuel and want to boost it, and then the claim that they are all useless.
This is because abroad 95 octane fuel is cheap and 97 is not too much extra as comaped to the cost of adding octane boster.
that being said the logic why i wish to use octane boster is that in India we pay about Rs 16 per liter extra for speed 97, thus i am never sure if the guy selling speed 97 has not mixed a bit of normal fuel because no one will really know since all the test are for other adultrants(like kerosene desile etc) none test the octane rating (since only a anti knock engign is required which is only in IOC main testing labs) i am talking of the quick test perfomed.

thus to be really sure i would like to get the regular fuel and add some adatives that i can rely on and be happyly on my way

@crvlvr : you might be right about corrosive action and that is why i posted on the forum so that people who know stuff can enlighten.

there is a type of adative MTM for boosting octane which is manganesium based (like the good old lead) that apparently does not damage the catalytic and is good for the engine since it prevents valve seat ression.

I will put up more information as i keep reasearching into it. in the mean time anyone with some knowledge to share...
please feel free

I guess when they've written it officially you've got to trust them that it is in fact 97 RON

Just to clarify: RON and MON are two different octane rating systems. For petrol, the RON number is typically 8-10 points higher than MON number. ie. RON 97 = 89MON.

1. First check to see what the rating is for your bike
2. Check to see what the rating is at the pump
3. If they are in different units (RON v. MON) make the appropriate adjustment.

To make matters more complicated, in the US we use (RON+MON)/2. Which means the high octane rating that we get here 93 (RON+MON)/2 is actually a 97 RON

My CBR600 requires a 95RON.

Adding octane boosters will NOT improve performance, but will prevent damage to the engine IF the octane of the petrol is too low and results in knocking.

IIRC MON is mainly used in North America. Nowhere on this thread I see it mentioned.

Modern engines (actually ECUs) are very resilient to the Octane rating of the fuel. Knocking is almost unheard of in modern engines these days.

idont see the use of octaneboosters
neverused them onmy ninja
neverfelt theneed

using 95 oct here in saudi which is equal to 91 oct usa. thats the least that should be used anyways on modern bikes post 03+

Now even the Ninja 250 which was launched yesterday comes with a compression ratio of 11.6:1 and hence the question which fuel is best for Ninja will raise. And someone like me who if owns a Ninja will love to take it every corner of India but this fuel question will raise some doubt in my mind. And the bigger problem is that we are not even sure what exactly is the correct solution for the problem.
Sure members like Ken and others are using 91 octane and sometimes even the normal unleaded in many of their rides but if someone is thinking of keeping a bike for long term (say 5 years) will it not effect on the longer run?

@bunnymarwaha-Congrats on your new purchase.Yesterday only I read it on the other thread but sad to know the state of affairs from Honda.

Thanks MG - yup my hond is giving battery trouble yet again..

@crvlvr - good clarification on RON and MON and so required that being a cause of a lot of confusion when reading on website - i like to refer to RON as it is a rating thing as i have seen reviews where diffrent pumps brands in us had same RON but difftrent MON so i guess they thought best to take the average

i am sticking to RON as the bike specs genrall mention RON as a specification.

as i understand that till 11:1 a RON of 91 our XtraPriemium or metro's normal petrol should be good enough witht he newer bike with 12+:1 ratio they start requiring higher octane.
Athough its true that most of these bike have some sort of anti-knock sensor to compensate for fuel variation but we dont know how much

and again in India octane booster are not for performance but just so that one can go outside town and fill some fuel to get your bike back.
question is which octane booster actually lives up to its word of increasing the octane number (perhaps the bigger question is which octane booster is available and reliable fake stuff is such a problem)

BP has discontinued speed97 since a month, i need an octane booster for my bike(r1), any suggessions? the r1 needs 95 octane fuel minimum, is Indian Oil xtra premium 93 octane?

thanks..

Its 91 octane.