996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

High Boost/Bigger Tubo - Higher Viscosity? What oil?

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Old Aug 30, 2014 | 05:23 PM
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High Boost/Bigger Tubo - Higher Viscosity? What oil?

Just wondering what oil people are using for high boost and bigger turbos?



Thanks........
 
Old Aug 30, 2014 | 06:54 PM
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Mobil 1 5w50 is a proven oil. OEM fill on 997GT2RS.. I've been tracking this oil in 100F+ heat without issues...
 
Old Aug 31, 2014 | 03:24 AM
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I use rotella t6 5w-40...

I believe its more about how often you change oil than what kind of oil. The t6 is decently cheap (not that you should care about saving on oil for these cars) for 8 quarts, and its protective. Its heavy diesel oil. Its worked for me so far!
 
Old Aug 31, 2014 | 07:42 AM
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Originally Posted by pwdrhound
Mobil 1 5w50 is a proven oil. OEM fill on 997GT2RS.. I've been tracking this oil in 100F+ heat without issues...
Either this or Castrol 10W60. Both oils are excellent for these cars.
 
Old Aug 31, 2014 | 08:08 AM
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+1 on Rotella T6 5w40, although I may switch up and try a 5w50(anyone have experience with Castrol Syntec/'Edge'? for a few oil changes and see if I notice any 'differences'. Would like to test 10w60's as well, but at ~3x the cost of T6 I don't have enough incentive.
T6 has lots of moly and ZDDP in it, bearing/load-surface savers...also, almost have noticed near 0 oil consumption over oil change interval, 3k miles/5k km.
Cheers,
Rob
 
Old Aug 31, 2014 | 08:37 AM
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^ i'm using castrol edge for the first time in an effort to mitigate the oil starved condition i was having in extreme heat startup at +100 temps.

my summer blend is 4qt's of edge 5/40 and 4.5-5 qts of edge 5/50. there has been no sound at startup since the change. the car sounds happy, so i'll stick with this. in winter ( should we ever have one ) i'll probably go back to a winter fill of castrol edge 5/40. i would use the mobil 5/50 but it's hard to source and relatively expensive out here.
 
Old Aug 31, 2014 | 09:36 AM
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Valvoline. Vr1
 
Old Aug 31, 2014 | 04:56 PM
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Originally Posted by Fadi
Valvoline. Vr1
Which model VR1?
 
Old Aug 31, 2014 | 07:03 PM
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Good old OW-40 should be fine. I have heard that the thicker the oil, the longer it takes to circulate. If you're going to track the car, then higher viscosity oil makes sense. If you're just driving around sanely on the street with lots of HP, I would keep to 0W-40, but that's just me.
 
Old Aug 31, 2014 | 07:31 PM
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! ^ not if you heard what 0/40 regularly sounds like in my 118k motor upon starts +100. i promise you'd seek options. my starts now at 100 are perfectly lubed. you can hear it, and the difference.

0/40 in HI temps is good for pancakes on a griddle just maybe? but i quieted an awful screech by upping the viscosity. i really think it's just too thin for some temps. admittedly this is anecdotal.
 
Old Aug 31, 2014 | 08:40 PM
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I personally like the Liqui Molly 10w60. It's a BMW designed oil but I love the oil so far nothing but good things I see so far . Has a nice list of additives and has a nice cushion for higher temps here in FL as well as cars making a good bit of power , always a good piece of mind .
 
Old Aug 31, 2014 | 11:11 PM
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your engine was recently built if i am correct?That is a question for your engine builder and how he set up the clearances on your internals.Ask him what he recommends.
 
Old Sep 1, 2014 | 01:33 AM
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i use 5w-40 mobil 1 synthetic diesel oil (tim suggested this years ago)because i beat on my car. i've used this viscosity on my 996 as well.

how are you enjoying your beast ?
 
Old Sep 1, 2014 | 02:31 AM
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Originally Posted by Wealth Manager
Which model VR1?
Valvoline VR1 racing 20-50
 
Old Sep 1, 2014 | 05:47 AM
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ok so my question for those experimenting with different oils is who is taking samples and sending them to a lab for analysis? thats the only real way to tell if the oil is working or not
 


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