What Fuel

[slipperymongoose]

Read his custom title it says it all. I've put the same octane rating in all the time so yeah I do however notice differences between fuel brands

[codajastal]

Read his custom title it says it all. I've put the same octane rating in all the time so yeah I do however notice differences between fuel brands

[peterscotts]

Sounds like our fuel is codajastal with what i have read... There talkin 80 odd octane... WTF.. You heard of that

[codajastal]

Sounds like our fuel is codajastal with what i have read... There talkin 80 odd octane... WTF.. You heard of that

I think we have E85 which is in that area of octane but I have yet to see it locally?

[codajastal]

Found this

http://www.powerchipgroup.com/articles/octane/page_one.html

Fuel Octane Ratings for Recreational Engines
How important is it to pick the right one?
When you drive into your local petrol station, something most of us do on about a weekly basis, you have a choice of 2, 3, or even 4 different grades of petrol (gasoline) to choose from. But it's rarely a difficult choice.
When it comes to road vehicles, most of us are driving a locally made vehicle, or an imported vehicle made specifically for Australian and New Zealand conditions. Therefore the owner's manual, and labels on the vehicle, will be written so the specifications match local terminology. Fuel requirements will be something "like use ULP or unleaded petrol". Here's an example:
(Holden Commodore VX Series) -

FUEL   Supercharged engines   Premium (95 octane) UNLEADED petrol
Non-Supercharged engines   Regular UNLEADED petrol of 91 octane or higher

Petrol station fuel pumps are marked with similar words, that's why it's not such a difficult choice, but what if you are using imported equipment that may not match the local terms? Can you easily get into trouble by picking the wrong fuel? Unfortunately, the answer is yes.
You'll notice the word Octane is used a lot when describing fuels. Of course, that refers to a rating given to the fuel for its resistance to detonation. Higher octane ratings mean greater resistance, which is what higher output, more highly stressed engines usually need. The name comes from one of the laboratory fuels used when measuring octane ratings, isooctance (see the following article on octane rating history).
Ever since the octane ratings were first established back in the 1930's, that word has been used around the world, but (and here's where we can get into trouble) there is more than one type of octane rating method and not all countries advertise the same one.
There are two basic octane measuring methods, the Research and Motor methods, plus some derived versions like AKI (Anti Knock Index) or Pump Posted octane numbers (also in the following article on where these names came from).

[codajastal]

http://www.environment.gov.au/atmosphere/fuelquality/standards/index.html

Australia's fuel quality standards are designed to make the nation's transport fuels among the cleanest in the world. The standards regulate the quality of the fuel supplied to consumers and reduce toxic vehicle emissions. Fuel quality standards are an increasingly important issue not only to protect the environment, but to safeguard the consumer as well. Modern vehicles require fuels that meet high quality standards and can be damaged by inferior products. The cleaner air will be good for our health, for local and global environments, and for reducing the economic and social costs of illnesses linked to vehicle pollution.

[peterscotts]

Well there ya go.. "There is more than one type of octane rating method and not all countries advertise the same one."  Oz & the U.S are obviously different. 

[codajastal]

I actually learned something. Damn now I have lost some more brain cells to accomodate that information

[peterscotts]

   NA COULDN'T BE, YOU GOT PLENTY MORE CODS

[slipperymongoose]

How we 'base' our octane rating differs from Yankee land. Our regular 91 unleaded, is what the seppos call 87. The RON you see after the octane number is called 'research octane number' yanks use a different rating system but basically is the same stuff. E85 fuel is a mix of 85% ethanol and 15% regular unleaded. It's around 110 - 115 octane I think.