I see the error here. I meant to say the first number, not 'the last'(thinking typo). Both have the 5W rating. But i think the rest of the mechanic world would agree that almost all engine wear occurs during the first five minutes of start up. With that in mind, it depends on which end of the spectrum do you want to "thin out". I don't live in a cold enough environment to constitute the use of a 0W oil. I use the recommended oil filter for the 2.5 from Fram, don't quote me on it but off the top of my head i think its the PH2.
