I always believe in real data. I have yet to see any data from dyno runs that would suggest that going from 87 to 89 or up causes a real difference. Ed
In the attached PDF article AAA uses the 2.0L Skyactiv for the results.
Like in Europe、Asia, Australia uses RON (Research Octane Number) for octane rating at the gas pump. In US and Canada we use AKI (Anti-Knock Index) or "(R+M)/2". So your 91 octane is equivalent to our 87 octane regular gas. And your 95 octane is equivalent to our 91 octane premium gas.The Mazda CX5 in Australia takes 91.
The federal government has announced that it's going...too much sulpher.
The next one up is 95 and about 10c a liter extra.
These people are clowns.