Effect of different octane petrol

[inetba]

If I normally use 87 octane, and I switch to a higher octane, will it do anything to my engine? Or will it just make it faster?

 

[steve09]

it depends on the engine, if highly tuned then yes, if mildly tuned, might get some increase of power, i for one will only be using high octane fuel in my bike/car. as it helps with antiknock and make it a bit more effitiant.

in sports bikes you really do see a difference.

 

[obi_waynne]

Have a read of this article (my wife wrote this one using her scientific background)http://www.torquecars.com/articles/fuel-octane-ratings.php

 

[inetba]

that article helped tons! thank you!

 

[pgarner]

i didnt really notice the difference between normal 95 ron and v power 99 ron. however the diagnostic port and engine did.
afer running with super for a couple of weeks (garage had ran out of super one week) power was up on the diagnostics by around 13bhp and 12 ftlb. conditions were more or less the same

 

[inetba]

Well, I have used 87 (I don't know what that translates to overseas but it's regular over here.) I have used 87 my entire life, and now that gas is less than $3.00 a gallon I decided to try 89 because I didn't want to shock the car too much, all I've noticed from the past two tanks is slightly (VERY SLIGHTLY) increased mileage. So next tank I'll try 91, The highest one over here and see what happens

 

[Wcnwzrd]

So next tank I'll try 91, The highest one over here and see what happens

Depending on where you live, you might be able to find a shop or station that has the race fuel, i think it is 99 octacne but done quote me. There aren't that many stations that carry it though and alot of them that do require a minimun gallon per purchase. If nothing else, most shops can get it for ya, but you will pay out your nose for it.

 

[inetba]

Yeah.... I like my nose. I won't be racing until I get my engine swap so I'll keep my nose and get 91 octane until then.

 

[inetba]

Well, today, I'm going to be testing out 91 RON (is RON a direct translation of Octane? 'Cause when I say RON I mean octane.)

I'll keep you guys posted on how it runs.

 

[pgarner]

Research Octane Number

think the amercian numbers are slightly different to uk ones

 

[obi_waynne]

You can compare the different ratings here http://www.torquecars.com/articles/fuel-octane-ratings.php why we can't adopt one standard I will never know.

 

[Wcnwzrd]

You can compare the different ratings here http://www.torquecars.com/articles/fuel-octane-ratings.php why we can't adopt one standard I will never know.

Becuase us yanks have to be difficult and make up our own system for everything

 

[inetba]

According to that article, 91 here is like 95-96 RON. and I didn't notice much difference honestly. I'm now going to slowly go back down to regular fuel.