Lots of conflicting information out there.
https://www.nsw.gov.au/driving-boating-and-transport/e10-fue… states 'compatible' with most modern petrol cars and no reason not to use if manufacturer allows
Local mechanic- DON'T use it!!! BAD for your engine. I checked my car model and it is compatible.
https://www.drive.com.au/caradvice/is-e10-better-than-91-ben… less efficient, more economical, less CO2 emissions
https://www.google.com/amp/s/amp.abc.net.au/article/everyday… - only more economical if e10 cheaper by more than 4 cents.
Some expert opinion and reliable sources of info appreciated too. Thanks in advance.
I just use 91. For me, it's not cheap enough to be worth the risk of being worse for the engine and worse economy. Where I am it's only a few cents cheaper to get E10 over 91.