Hi, just after a few possible thoughts on what could be made out of what I was given. I contacted two email address at Shell asking for a Product data sheet on the USA Import Pennzoil GT PERFORMANCE 20w50. now I received two emails back from different people at Shell, both with attached Data Sheets. Both Sheets have Contradicting information on them! There are several readings that are under the same testing standards number with different results. When I asked the question, "why is there two different sheets, and shouldn't it be the same as the one on the USA Pennzoil site, seeing as it fully imported and that it's claimed the product specs never changed since Shell took over". This was the reply. "even thought we fully import the product it is test to Australian tests standards and this is where the figures you have were obtained." I replied, but the test standards numbers are the same on both, why would there be a difference?" Never got a reply! Could they be telling a lie in that it's not imported from the USA even though the bottle says so? Any ideas?