Okay, after much research and deliberation I decided to go with 5W-40 Motul 300V (not on Porsche approved list) and LN Engineering's screw-on filter adapter with a high-flow Napa Gold filter recommended and provided by LN.
I also bought LN's oil test sample kit for $25. Therein lay the problem. My usual doubled-up 2X8 lift solution did not leave enuf space to get the sample bottle out from between the engine and my oil catch pan.
Sooo, (and here it goes downhill) I decided to yank the bottle out and accept some oil spillage. BAD IDEA! I knocked the catch pan out of reach. Despite my vile language the oil continued to flow. Revise that to HOT oil continued to flow.
I finally got the pan in place and went for the cat litter which was AWOL. Had to ask spousal unit to pick some up on the way home and, of course, admit why.
After 10 lbs of cat litter, the rest went well. The adapter went on as advertised and same for the filter. Also replaced the engine oil plug with LN's aluminum plug with magnet in center.
Someone else posted a notable engine quietness with group 5 oil, which I discounted. But there really is much less clatter at idle.
I'll post any problems or additional benefits later after more experience.
By the way, I bought half the stuff from Jake Raby (Flat Six) and half directly from LN in order to support both their efforts to support our M96 engines.
I switched from Blackstone to LN to contribute to the database Charles Navarro and Jake share. Data are in different format from Blackstone, but I believe the database is important and URGE all of you M96 owners to do the same.
Charles says he is doing everything he can to keep his (American) suppliers working, and I support this effort also.
Note: I have no affiliation with Charles or Jake, but admire both.
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