Calissa, Very interesting link. So Nexbase 3000 is a Group III that is different from, and apparently better than, other Group III base oils. Also, did I see something about it being lower cost? I would not mind using Group III at more reasonable prices. Picked up some NAPA synthetic, which likely is group III, for only $2.69 a bottle on sale. But typical Group III based multigrade in USA is around $4 a bottle and you can get Mobil 1 PAO on sale for that, so why get Group III. But I think over time there will be a focus on the boundary area between synthetic and conventional and Group II+ and III will become more prevalant, but the USA consumer must get over the 3000 mile oil change that has been pounded into their heads by the oil companies, especailly those that have quick lube type establishments.