1) No lawsuit was involved. As the link below details, the arbitration between Mobil and Castrol was at a division of the Better Business Bureau.
2) Castrol Syntec, and all other over-the-counter synthetics except Mobil 1 are made from Group III base oil. It is indeed very highly refined petroleum. It is a good product, but not worth the price. Amsoil's XL-7500 line is also Gr-III.
3) Mobil 1 is not made from Group III base stock. It is mainly Group IV polyalphaolephin with some Group V ester base oil.
Ken
|