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Yes, they are on the API cert list, but are not ILSAC certified. You can be API certified without being ILSAC certified. Thus the reason for using two symbols - API (donut) on the back of the container, and the ILSAC (starburst) on the front of the container. They didn't meet the new GF-4...

My 2008 Lexus IS owners manual states 5/30 ILSAC rated oil should be used. I would like to go with Royal Purple but they don't appear to be ILSAC rated anymore. I have found a site in the internet that carries RP 5/30 and the picture of the container has the starburst symbol. However, that same...