I could only find 0W-20 full synthetic from my local toyota dealer. We have 5 auto parts stores here in town plus a Super Walmart. None had the 0W oil. Walmart had it but that was a few months before I bought the TCH. I read some of the other car manufactures may have more hybrids on the road in 2009/10. That might bring the 0W back to the auto stores.

Try calling your local Toyota dealer parts department and ask. The toyota brand I bought came only in quart containers. The price was about the same as Mobil One. I noticed my engine was a little quieter when I switched to the synthetic. I bought 5 quarts. The engine takes about 4 1/4 quarts. I saved the remainder in the trunk in case I needed to add any.

It was the Toyota Tech at the dealership that had been to the hybrid school. He was the one that recommended me changing to the 0W at my first oil change. He mentioned it gets oil up into the valvetrain quicker than other oils. That sounded good enough for me.