I think you will find that they come with a additive, to inhibit corrision, increase boiling temperature and decrease freezing temperature, this usually gives your coolant a red or green colour. You should not have any problem with the car in Australian snow conditions (atleast with coolant freezing). Special coolants are only usually required if you are going below -30 C.

The thing you might notice is your LCD screens, however its a reverseable change and as soon as it heats up they will go back to normal.

 

Thanks mate...

picked up my car yesterday and the guy advised me it was 50/50 coolant and is antifreezing.. after having a look in my manual it says it can be driven in conditions up to -37 degrees celsius.. so I think I should be safe..

 

Isnt that like asking ummmmm sorry mate .. "does my tyres come with air in them?"

 

well tyres could come with air or nitrogen so that is not as stupid of a question as your sarcasm would indicate.