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Old 04-12-2008, 12:14 PM   #1
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Oil Tech Session

I coordinated an oil Tech Session today that focused mainly on air cooled Porsches' oil needs.

Interesting reading for those of you with older cars and another opinion on all things oil.

Our main speaker was Charles Navarro, here's a link to his website.

http://www.lnengineering.com/oil.html

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Old 04-12-2008, 01:59 PM   #2
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I have read Mr. Navarro's report (mine was dated 12/18/07) several times. Good stuff. Very technical.

One interesting note is that he runs a "green" (non synthetic) oil in his air cooled Porsche and changes the oil filter 1/2 way through the oil change interval.
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Old 04-12-2008, 03:19 PM   #3
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I asked him about my recent oil analysis and he asked me to email to him which I've done. I asked him for his opinion and recommendation.
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster bought new. Installed used motor at 89k.
1987 924S. 2002 996TT. PST2
Owned and repaired Porsches since 1974. Have driven them all the way the Dr intended...
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Old 04-12-2008, 03:22 PM   #4
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I use Redline 20W-50 in my air cooled Harley.

The oil filter switch will extend the life of oil quite a bit, esp. if it is synthetic. It gets rid of some old dirty oil and improves filtering quality quite a bit.

Truck drivers use super duper filters to add many miles to the synthetics they use.
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Old 04-12-2008, 07:43 PM   #5
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Charles responded with a request to have my oil tested for Total Acid Number and concluded his remarks with:

"the UOA looks excellent - you have one very healthy Boxster!"
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster bought new. Installed used motor at 89k.
1987 924S. 2002 996TT. PST2
Owned and repaired Porsches since 1974. Have driven them all the way the Dr intended...
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Old 04-12-2008, 11:36 PM   #6
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A good read. Thanks for the info!
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Old 04-13-2008, 12:46 AM   #7
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yup, not surprised, most of that is what I've been hearing and relaying to people for a while now.

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