Article by Tom White Journalist, CarsGuide
You should always check if your car is suitable for E10 before using it.
E10 fuel contains ten per cent ethanol by volume, the maximum allowed by the Australian government in standard fuels. At many petrol stations E10 is now the base fuel, occasionally marketed as 94 RON.
As a general rule, most cars post-1986 can run on E10, whereas most cars that once ran on leaded fuel or are carburetted cannot.
This is due to the ethanol component in E10 carrying more water by volume. The water present in this fuel can cause corrosion on engine or fuel system parts, and can cause a build up of engine residues.
Some cars that are compatible with 5 per cent ethanol are not necessarily also compatible with E10, so caution must be taken when referring to the car’s fuel requirements. Many European vehicles, turbocharged, or performance vehicles require a minimum octane rating of 95 or 98 and should not be refuled with E10, 91 or 94 fuel grades.
You can check most makes of vehicle here