Some US states have aleady put bitter additives in their Anti Freeze, not sure about ours in Australia and not going o taste it to find out.
Keeping the stuff up is not going to help is your car leaks, that is what I though worth alerting pet owners to.
If our Anti Freeze still tastes good, anyone who wished to might might even start a petition to have bitter additives in the stuff sold here, just as the owners of the little dog in the story the link leads to did.

The Humane Society of the United States estimates that about 1,400 children and 10,000 dogs and cats die from complications related to antifreeze poisoning annually, while other organizations estimate the number to be even higher.