07-07-2013, 01:45 PM
(07-07-2013, 12:33 PM)Deanohh_imp Wrote:(07-07-2013, 11:39 AM)_imp Wrote: I read in the Aussie manual that 91 was required, so that is why I was using it. Then read in the US manual 86+ was OK.
Funny but the FZ8 also is fine on 87 according to the manual.
Aussie might be one of the countries that use a different scale for their gas numbers.
Aussie might be one of the countries that use a different scale for their gas numbers.
They do, they use the European system of octane rating. Their 91 is our 87. Using a higher octane fuel than is required for a stock engine will do absolutely nothing for you besides cost more money. As mentioned, if you want to pay more, find 100% gasoline and use that, you will actually get better performance that way (only about 3-4%, but it's also better for the engine). If your fuel says "may contain up to 10% ethanol", you can bet it has 10% ethanol in it.
This is one of those internet arguments that happens constantly and consistently, with everyone going round and round on it.