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A Bit more gathering here.
Feel free to jump in and correct me.
In the EU, 10K oil life has been mandated for a long time. (govt regulations)
That's the big oil difference.
Here, some oils advocate it.
SO, the EU uses a better base stock for theirs, as said.
Some oils here do.
I find no science so far that the lubrication is better.
The viscosity, as stated, is measured a little differently.
That might be important if you are driving in below-freezing temperatures.
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162 Assault Helicopter Co,(Vultures ) D troop 3/5 Air Cav. ( Bastard CAV) South of Saigon, U Minh Forest, Delta, and most parts in between.
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