AgExplorer
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- '03 Sport Trac XLS
Originally posted by Rick
Amsoil claims that Mobil 1 is now a blend. Mobil claims that it is still not a blend and differentiates between the two.
Where does AMSOIL claim that Mobil 1 is now a blend? I have never seen any information on this matter. A blend is typically defined as a blend of synthetic motor oil and conventional motor oil.
In the lawsuit filed by Mobil against Castrol, a court found that Castrol can legally use the term "synthetic" for their Syntec product even though the base stock is a highly refined petroleum product. Mobil maybe using "synthetic" in the legal sense where they state "Mobil 1® uses high-performance fluids,
including polyalphaolefins (PAOs), along with a proprietary system of additives".
There are two classes of rating for synthetics that apply - Class 3 for those using a highly refined (hydrocracked) petroleum base stock and Class 4 for a 100% PAO base stock. Mobil 1 could be a Class 4 or somewhere in between a 3 and 4.
I know for a fact that AMSOIL is made from 100% chemically derived synthetic base oils.