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
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.
...
In the attached PDF article AAA uses the 2.0L Skyactiv for the results.
http://publicaffairsresources.aaa.biz/wp-content/uploads/2016/08/Premium-Fuel-REPORT-FINAL3.pdf
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.
I agree. Mazda programmed US version SkyActiv-G engines only for regular gasoline and they don't take advantage of using higher octane premium for higher output. But this's different story in other regions and they can have a little higher horsepower by using premium gas.I've tried a few tanks of 93. It made no difference in performance or, more objectively, mileage. Not worth paying 75 cents a gallon more for nothing, in my case.
I think people who believe they can tell a difference either have very extenuating circumstances (towing maximum weight in 110*F weather), or are experiencing a placebo effect.
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.
Thanks for the detailed explanation...I did work for Texaco/Caltex for a few years and I knew there was a difference.
My complaint is the government has come out without any warning [or time schedule] and has said 91 is going.
I use 91 in my SP23 and that works perfectly. So whatever the time frame I'll have to go [forced] to 95.
They haven't said 91 is going. They've just floated it as one of several options. Doubt it will happen, at least anytime in the next few years. Would you want to be the Govt that puts up petrol prices by 20c per litre?? Good way to lose if you ask me.