OK; replying to myself is well... RE: IMS
I finally did a thourough reading on the Porsche achillies heal. I SHOULD have upgraded the IMS bearing assy while I was there working around it. Doh!
That leaves me with frequent oil changes for now. I changed out my 4000 mile Mobile 1 0-30 to Castrol Syn 5-30 yesterday in fact. I was surprised at how dirty all that oil was. I flushed out the oil system a little by pouring two quart, one at a time, through the engine after a thourough drain interval. This moved quite a bit of old oil out and the final result was clean oil running into the drain pan after about 30 minutes.
I used an oem filter last time and again this time. Maybe an upgrade element or better yet a spin on conversion and a Wix filter whould be a better idea.
I will set aside some time and a few bucks to do this IMS bearing upgrade job.
Thanks for all the input.
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