Its thin so that it flows better in cold startup situations, where 98% of wear occurs.
Why would you not want this?
Also to be more energy efficient.
I think we have a lot of things to worry about rather than which of these fine oils is better than the other. Many other factors have a larger impact. Heat, mileage, oil change interval, usage pattern, etc.
My 2 cents.
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heatmizr [Todd]
g26 i4 e40 - Clean Machine
e70 X5 50i M-Sport "The Boss" Loaded
e90 328i - sold
e36 M3 - Gone to become a track star
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