ppl in new zealand are saying that your 91 octane is equilvalent to our 94octane. is that true or not as i think they are talking ****

 

I don't think it'd be different, because it's a mathematically figured out.

Say you have 91 octane gas, that 91 octane gas containes 91% octane and 9% heptane (or in some cases other combinations of fules that has the same performance of the 91/9 combination or octane/heptane)

Where did you hear this from? just a rumor?

 

aren't their two different octane rating systems. Something like where the u.s uses RON or something like that and everywhere else uses something different.
I would like to know what the equivalents are too

 

**** yea, i remember reading something about RON.....gimme a bit i'll try and dig it up

 

POW!

Octane rating calculator

http://www.csgnetwork.com/octaneratecalc.html

 

Using this you can experiment to see if you can use a grade lower fuel without creating engine ping, in order to be optimally cost efficient.

 

thats a nice little calculator

 

yea could save people a nice chunk of change. if you read the whole page it makes sense.

 

what do u guys feed ur gsr's?
i put in 93..

 

i belive 91 is sufficient

putting more is overkill

read the article i provided the link to, and find out if your wasting money

 

High octane gasoline does not outperform regular octane gasoline in preventing engine deposits from forming, in removing them, or in cleaning the engine. Consumers should select the lowest octane grade at which the car's engine runs without knocking. Occasional light knocking or pinging won't harm the engine, and doesn't indicate a need for higher octane. On the other hand, a heavy or persistent knock may result in engine damage

straight from the link

 

well if New Zealand is anything like Thailand, then they SAY it's 94.

 

in new zealand, Shell has unleaded 96 and Mobil has unleaded 97.5