What oil/oil filter are you guys running in your stock 340's?

jimharvard said

is Rotella 15/40 a synthetic oil? and where do you buy Wix filters? i live in Pittsburgh, PA and i don't think i've seen those filers around here.

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Rotella is available as a synthetic it will be T_ Might be T3. T6 is the 5W-40.
If the hot oil pressure is a little low, thats an indication when a 40 should be used.