Mobile 1 is a blend.
A few years back, when Castro released their Full Synthic.
It has a petroleum base.
Mobile sued, and "lost".
The Federal Board of Petroleum products in their decision
decided that petrolium from the ground was being refined
to such a high state that it did not matter if it was used
as a base stock for oils that bore the Fully Synthics label.
Mobile jumped on this. Why because it's alot cheaper
to produce the synthics product this way.
Amsoil, put some 10/40 in the bike last year.
It still looks clean, the bike still shifts clean, and I
can still run up through downtown Los Angeles on the
110 and not have the cooling fans come on, unless I just get
stopped and cannot get some air moving through the rad.
"that also has Amsoil full syn ani freeze".
Amsoil, "I've been sold since I 1st put it in my bike".