I just noticed that the 3 jugs of Maxlife 10W-40 I recently purchased all say that the oil "Meets or exceeds all requirements of ILSAC GF-6A," which I could see if they made a semantic error trying to say that it passes all the tests except the fuel economy related ones which wouldn't be possible for a 10W40 with an HTHS of 4.0 to do, but the front of the packaage shows the API Starbust, this same quirk can be noted in the photos on Amazon's website for 20W50 MaxLife, https://www.amazon.com/Valvoline-20W-50-MaxLife-Mileage-Motor/dp/B00GDH5RBQ . I don't know what's up with this but I wouldn't expect this kind of mislabeling from Valvoline.