The 3614 is all you need. Personally I use the Tough Guard version. Anything beyond that is overkill for OPE in my humble opinion.Thanks for the Info. You mentioned your using a Fram PH3614 oil filter.
One of the other posters (racer12306) mentioned that the Fram PH3600 is slightly taller.
Did you ever try a PH3600, and if so, was it too tall and didn't fit?
I used M1 10w-30 EP in that engine the first year, then I switched to 10w-30 M1 HM for its higher HTHS for the next few years. It's been 15-w40 RT6 for the last two years. No complaints on any of these oils.
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