Thoughts on partial oil change?

Not worth the effort. I have a few empty quart bottles around and would just drop the quart from the 5 quart jug into one of them. Eventually it will get used.
 
A few previous threads on this particular topic that may be helpful. There are a few more:

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Thread 'Partial oil change?'

Having looked over the info regarding old oil being able to protect better than fresh oil (a severely debatable point, I realize)...

I just wonder, assuming that the old oil argument is correct... I wonder if you could get the best of both worlds by doing a partial oil change?

In a 5 quart engine, you could pump two or three quarts out through the dipstick tube, and replace them.

Then change the oil filter at the next interval, and maybe pump out and replace 2 quarts...

I thought of this because in my 1993 Ford Escort's earlier years, it was burning about a quart of oil every 1000...
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Thread 'Down side of partial oil changes?'

I don't like getting under my car and I don't drive as much as I used to so I have simply siphoned a quart out of the sump and added enough to bring it up to full mark for the last year or so. Engine uses a quart per 4,000 miles. Filter is an oversized Fram Ultra so I'm not worried about that. Question is, if this were to continue indefinitely, is there a downside to not ever totally draining the oil?
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Thread '? on partial oil change'

2005 dodge diesel, dello 400 with wix filter. Say I went 5,000 and then drained 1 gallon and added a gallon every 2500 miles after, how long would you go before a filter change and a complete oil change.
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Thread 'Half an Oil Change?'

I just did UOA and got my report. I would post it, but BITOG doesn't accommodate posting pdf files, and I'm too lazy to manually enter all the data. Getting to the point, my particle count is 14/13/11 compared to my baseline sample of new oil having 17/16/13; so my oil is about 8 times as clean as new oil, all of my wear metals look excellent and my TBN is well within limits...

However, I don't think my air filter is as good as my oil filtration; I've got 30 ppm silicon. (Blackstone and other labs start caution at about 20 ppm Si.). Since I've run the oil only 8K, I've used (and drawn out...
 
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