I'm open to non-synthetic.

 

Why don't you change the oil with a high quality oil like; Joe Gibbs DT 40, Motul X-Cess, Mobil 5W50, etc....and extract oil samples every 500 miles, and send those out for UOA.....and chart/graph that data? Once you start seeing wear metals at a level you don't like.....rinse and repeat (using the same brand/viscosity).

 

Aside from the oil and filters, with that many oil/filter changes you better order lots of the aluminum drain plugs and washers. They strip ever other oil change. Better yet, invest in the LN Spin on Oil filter adapter and anodized drain plug. Worth every penny IMHO. Also, I'm not on board with your plan and frequency. I know you think you might gain statistically relevant data but I don't think so with that frequency. You will have to use the same brand and weight of oil every time, and the same filter, otherwise your data will be useless. Choose carefully. You will have to find a way to filter out the useless data, normal aging, keep track of your mileage and driving (Like this 1,000 miles was mostly city driving, lots of engine revs and starts...this 1,000 miles was city/highway driving, not so many starts, cruising which is far easier on the engine...and so on...)

In the end all this kinda takes the fun out of owning a fabulous car. I recommend changing the oil/filter so you know how to do it...then drive the crap out of it like it wants to be driven! Change your oil at 5,000 miles (or one Spring change and one Fall change) and send it off for analysis. As time goes on there will be plenty of other things that will need repair/replacement...you just do it and move on.

 

Yes I like the idea of high quality oil.

Or one targeted to my needs (history of storage periods with no particular regimen, and who knows what condition the seals are in). But I don't know which targeted oil that would be.

So with longer change intervals, is there a way to look for metal in filter more frequently than twice a year? Or maybe that's irrelevant when doing UOA, I don't know.

 

Trust me, I'm driving the crap out of it right now, and having a ball!

 

You can pull the filter housing whenever you want.

 

Good deal, I think I'm on board with that plan.

 

All this crap...no wonder 996's get a bad rap, drive it and enjoy it

 

This thread is so full of LOL. Other non Porsche people will stumble onto our forums and finally understand why some Porsche drivers are the way they are.

 

Said the guy who also said this:

To all readers, this is a technical thread, not an editorial one.

 

are you the guy that pulls his spark plugs and sprays oil in the cylinders if the car sits for 2 or more weeks

 

Since you can pull the filter without dumping all the oil - yes. You can pull the filter cartridge and check for stuff, install a new filter cartridge, and add a half quart of oil (or however much is needed to bring it back to full).

There can be debris in your filter that won't necessarily be reflected in your OUA. Examples: sealant, chunks of chain guide, and any metal that brakes or fatigues away. The UOA primarily shows you the results of metals wearing.

 

Still hoping to understand what exactly it is you're up to.

If you're just interested in gathering data, a more interesting study (in my unsolicited opinion...) would be to find a group of similar cars - say, twenty 1999 911's, get UOA's over time for all of the cars, throw out any outliers, and come up with a baseline UOA "fingerprint" that a super-**** buyer could use to know if wear metals for a newly-acquired car are consistent with similar vehicles...

 

Yes sir, not just oil but Marvel Mystery oil with a 10% mixture of Zmax. LOL

 

Thanks, that's good info.