Quote:
Originally Posted by diirk
The big thing to watch for with synthetics is to avoid mixing them. Different synthetics have different additives and may not always work well together.
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If the oils have an API or ILSAC rating then they are fine to mix/run back to back. You'll need to be running an oil with either of these ratings if your car is under warranty anyway.
For the OP, a few more retail options.
http://www.caltex.com.au/PRODUCTSAND...n.aspx?ID=1832
http://www.fuchs.com.au/categories.asp?cID=9&c=25467
You realise most oil companies down under do 0w-20 but only supply it in bulk to the trade.