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Join Date: Mar 2001
Location: Wandering Connecticut
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Survey of 996/997 Owners

I'd like to conduct a survey of 1996-2008 Porsche owners in order to get an idea of what kinds of preventative maintenance have the most value/effect. Whether your car is healthy or if you've experienced an IMS failure or bore/cylinder scoring issue, please share. I will post this survey in a number of forums and compile the information in order to get some conclusive data on what works instead of just relying on circumstantial evidence:

1) The year, mileage, and model of your Porsche the last time you drove it (i.e., at the time of failure, if it experienced one)
2) Did your car experience either an IMS or cylinder-scoring-related engine failure?
2a) Did the failure occur on a racetrack?
2b) What was the nature of the failure?
3) What oil is/was used in the car?
4) Did/does the car have a LN engineering spin-on oil filter, or the stock oil filter?
4a) If the filter was a spin-on, did/does the car also have the extra magnetic strip installed?
5) Did/does the car have a magnetic oil drain plug?
6) Did/does the car have a 3rd radiator installed?
7) Did/does the car have a low-temp thermometer installed?
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Current Stable:Black 07 Porsche Cayman S: FabSpeed Maxflo Exhaust; VividRacing ECU Tune; IPD Competition Plenum; 997GT3 Throttle Body; De-Snork'd.Green 97 Volvo 850 Wagon ("The Viridian Falcon") . Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"/"Suicide Machine").Silver 09 Mini Cooper S ("Mighty Mouse").Alpine White 83 Porsche 944 ("Alpine Wolf").Guards Red 84 Porsche 944 .
Old 06-21-2017, 07:32 AM
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Two simple ways to reduce or eliminate both issues: Proactively replace the IMS, run better quality (read high ZDDP and film strength) oils, change them frequently (less than 5K miles).

If you want to improve the car's odds, use a spin on filter, with a FilterMag and magnetic drain plug, run a 160F stat.
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Old 06-21-2017, 12:46 PM
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Yes, but I'm trying to collect data on what people have ACTUALLY done.
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Current Stable:Black 07 Porsche Cayman S: FabSpeed Maxflo Exhaust; VividRacing ECU Tune; IPD Competition Plenum; 997GT3 Throttle Body; De-Snork'd.Green 97 Volvo 850 Wagon ("The Viridian Falcon") . Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"/"Suicide Machine").Silver 09 Mini Cooper S ("Mighty Mouse").Alpine White 83 Porsche 944 ("Alpine Wolf").Guards Red 84 Porsche 944 .
Old 06-22-2017, 03:45 PM
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Quote:
Originally Posted by CJFusco View Post

1) The year, mileage, and model of your Porsche the last time you drove it (i.e., at the time of failure, if it experienced one)
2) Did your car experience either an IMS or cylinder-scoring-related engine failure?
2a) Did the failure occur on a racetrack?
2b) What was the nature of the failure?
3) What oil is/was used in the car?
4) Did/does the car have a LN engineering spin-on oil filter, or the stock oil filter?
4a) If the filter was a spin-on, did/does the car also have the extra magnetic strip installed?
5) Did/does the car have a magnetic oil drain plug?
6) Did/does the car have a 3rd radiator installed?
7) Did/does the car have a low-temp thermometer installed?
1) The year, mileage, and model : 2002; 175,000; 996 Targa
2) Did your car experience either an IMS or cylinder-scoring-related engine failure? NO; UNKNOWN IF SCORING. TICKING SOUND VARIABLY HEARD; WAS TOLD BY 2 PORSCHE INDIES THAT IT WAS LIFTER. SEEMED TO COME AND GO.
2a) Did the failure occur on a racetrack? N/A
2b) What was the nature of the failure? N/A
3) What oil is/was used in the car? ALWAYS Mobil 1, 0W40, changed every 3K miles or so.
4) Did/does the car have a LN engineering spin-on oil filter, or the stock oil filter? STOCK FILTER
4a) If the filter was a spin-on, did/does the car also have the extra magnetic strip installed? N/A - STOCK FILTER; NO MAGNETIC STRIP
5) Did/does the car have a magnetic oil drain plug? YES
6) Did/does the car have a 3rd radiator installed? YES - FROM FACTORY
7) Did/does the car have a low-temp thermometer installed? UNKNOWN - IF THIS WAS A FACTORY OPTION, I DON'T KNOW. IF THIS WAS SOMETHING INSTALLED AFTERMARKET, THEN NO.
Old 06-23-2017, 07:42 AM
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Survey of 996/997 Owners

1) 2000 C2 Coupe, manual, 150,000, daily driver (Hard canyon driving once a month or so, 3-mile commute to work every day.)

2) No

2a) N/A

2b) N/a

3) Mobil 1 0w40, Pentosin or Motul, 5w40 usually (5000-6500 miles, whatever I feel like, and have time for...)

4) Stock

4a) N/A

5) Yes, last oil change (just for the heck of it)

6) No

7) Probably not, (temp hangs around vertical, will creep up a few degrees if I really push it on a hot day or in CA San Gabriel Mountain twisties/hard driving).









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Last edited by brwilson; 06-24-2017 at 02:38 PM..
Old 06-23-2017, 08:09 PM
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1. 1999 996 manual. 32000 miles. Driven 12000 miles in the last year.
2. No failure, but IMS replaced with LN by previous owner.
2A. N/A
2B. N/A
3. Mobile 1
4. Stock filter
4A. N/A
5. No
6. No
7. No
Old 06-26-2017, 04:01 PM
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1) The year, mileage, and model of your Porsche the last time you drove it (i.e., at the time of failure, if it experienced one).
(1) 997S, 2006, 100,000 Second water pump died.
2) Did your car experience either an IMS or cylinder-scoring-related engine failure?
(2) Nope. Knock on wood.
2a) Did the failure occur on a racetrack?
(2a) Never does racetracks
2b) What was the nature of the failure?
(2b) The usual loss of engine coolant.
3) What oil is/was used in the car?
(3) Mobil 1 0W-40
4) Did/does the car have a LN engineering spin-on oil filter, or the stock oil filter?
(4) Stock
4a) If the filter was a spin-on, did/does the car also have the extra magnetic strip installed?
5) Did/does the car have a magnetic oil drain plug?
(5) I made my own and use it every other oil change.
6) Did/does the car have a 3rd radiator installed?
(6) No. Not required where I live.
7) Did/does the car have a low-temp thermometer installed?
(7) No. Stock from Zuff.

Dan
Old 06-27-2017, 10:39 PM
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1) The year, mileage, and model of your Porsche the last time you drove it (i.e., at the time of failure, if it experienced one)
A: 2002 996 C4 Cabrio. 65000 miles, last driven early June 2017
2) Did your car experience either an IMS or cylinder-scoring-related engine failure?
A: Did all preventive work; IMS, RMS, AOS, Water Pump, Plugs and Coils in 2016
2a) Did the failure occur on a racetrack?
A: Cylinder wall cracked on a 25 mile trip. As I was exiting the freeway, car miss-fired and got it towed to the mechanic, he found the crack on the cylinder head.
2b) What was the nature of the failure?
A: Cracked cylinder head (#3)
3) What oil is/was used in the car?
A: Very regular oil changes, always used Mobile 1
4) Did/does the car have a LN engineering spin-on oil filter, or the stock oil filter?
A: Stock oil filter
4a) If the filter was a spin-on, did/does the car also have the extra magnetic strip installed?
A: N/A
5) Did/does the car have a magnetic oil drain plug?
A: had a magnetic drain plug, no metal shavings detected in the prior oil change (3 weeks before the failure).
6) Did/does the car have a 3rd radiator installed?
A: All stock
7) Did/does the car have a low-temp thermometer installed?
A: All stock
Old 06-28-2017, 01:56 PM
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1) 2009, 61k miles, C2S Cabrio, no failures to date.
2) No Engine failures to date.
2a) Tracked once a year at club meet.
3) Castrol 0w-40 changed every 5k or before track day then after.
4) Stock oil filter
5) Magnetic oil drain plug.
6) all stock
7) all stock
Old 07-01-2017, 07:45 AM
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