05-16-2012, 08:23 AM
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#1
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Registered User
Join Date: May 2010
Location: pismo beach, ca
Posts: 140
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New Neighbor Said: "You're killing your engine"...thoughts?
I recently moved to southern california (woodland hills) and had to stop at my neighbors house when i saw he was cleaning his 996. Beautiful car...pristine.
We started into the typical "Porsche talk" and he asked what kind of engine oil i put in my car('97 2.5, 105k mi)...he said "its 0-40, right?" I said "no, i just changed the oil and put in mobil 1 10-40, high mileage". He then proceeded to tell me that, not only was i robbing myself of horsepower (not a big deal to me...not at price of longevity), but i was going to eventually make it seize as the viscosity is too thick.
Sounds a bit extreme to me. I would think that 10 weight oil, being a little thicker, would give better protection and stick to gears longer...and i know a few of you are using it. Am i wrong? I'd hate to have to change my oil again, as i did it yesterday, but if i need to, i will.
Please, any thoughts?
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05-16-2012, 08:58 AM
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#2
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Registered User
Join Date: Oct 2010
Location: NKY
Posts: 211
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I'm not an oil expert, but i use 0w in the winter, 5w in summer from reading this forum. A lot of people seem to have moved away from mobile 1 as well, but I still use it.
__________________
2001 Seal Gray 5-Speed - 2007 Yamaha R6 - 2003 Honda Civic EX - 1999 Nissan Frontier XE - 2003 Coleman Utah
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05-16-2012, 09:31 AM
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#3
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Track rat
Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
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Sounds a bit extreme. Lots of people have lots of opinions about oil. Just because a guy spent more $$ on his car doesn't mean he knows stuff.
My take: Use a full synthetic oil and change it every 4-5K miles. Any quality oil between 0-40 to 10-50 will not destroy your car.
My personal choice- Castrol Syntec 5w40 
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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05-16-2012, 09:31 AM
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#4
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Once your engine is fully warmed up (180+) you're both running 40 weight oil so unless Hi-mileage is not full synthetic there is no horsepower difference & your neighbor is not a oil expert either. Search this forum for oil info.
Whats the best bar in Pismo Beach?
Last edited by BYprodriver; 05-16-2012 at 09:33 AM.
Reason: curious
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05-16-2012, 09:33 AM
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#5
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Ex Esso kid
Join Date: Dec 2005
Location: NY
Posts: 1,605
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Does not go below zero in "Woodland hills, so you're fine with the weight you chose. Some even suggest the change you made is actually better for the M96, I can't see it being an issue.
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05-16-2012, 10:05 AM
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#6
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Registered User
Join Date: Apr 2012
Location: Nor.Cal
Posts: 131
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Since your in California and does not reach sub-freezing temp. its okay to use 10W, 15W or 20W oil weight.  I use Castrol 10W40. 
__________________
2K Boxster White/Grey Int./Hardtop/TIP 
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05-16-2012, 10:48 AM
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#7
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,527
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Quote:
Originally Posted by anti-bling
I recently moved to southern california (woodland hills) and had to stop at my neighbors house when i saw he was cleaning his 996. Beautiful car...pristine.
We started into the typical "Porsche talk" and he asked what kind of engine oil i put in my car('97 2.5, 105k mi)...he said "its 0-40, right?" I said "no, i just changed the oil and put in mobil 1 10-40, high mileage". He then proceeded to tell me that, not only was i robbing myself of horsepower (not a big deal to me...not at price of longevity), but i was going to eventually make it seize as the viscosity is too thick.
Sounds a bit extreme to me. I would think that 10 weight oil, being a little thicker, would give better protection and stick to gears longer...and i know a few of you are using it. Am i wrong? I'd hate to have to change my oil again, as i did it yesterday, but if i need to, i will.
Please, any thoughts?
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If there is anything "too thick" here, it is your neighbor........................
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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05-16-2012, 10:49 AM
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#8
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Registered User
Join Date: Feb 2010
Location: Phoenix, Arizona Baby
Posts: 495
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Quote:
Originally Posted by jfp in pa
if there is anything "too thick" here, it is your neighbor........................
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lol Very funny
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05-16-2012, 10:59 AM
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#9
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Ex Esso kid
Join Date: Dec 2005
Location: NY
Posts: 1,605
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If there is anything "too thick" here, it is your neighbor........................
And his font of course
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05-16-2012, 11:30 AM
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#10
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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10w-40 is the perfect oil weight for the temperature ranges here in LA. You will definitely not destroy your engine.
Mobil 1 High Mileage has a more extensive anti-wear and seal conditioning package than regular Mobil 1.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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05-16-2012, 11:54 AM
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#11
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Registered User
Join Date: Apr 2010
Location: Canada
Posts: 3,128
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the first number is cold weight, the second weight at temperature. colder regions require a lighter cold weight so that the oil has adequate fluidity during a cold start. once to temp all else is equal. in warm temperatures the cold weight is really moot, except - ask your neighbour if he worries about his chain tensioner paddles at all; with that runny oil of his all the oil runs back down to the bottom of the engine so on a cold start the chain is flapping against a dry paddle - does he see a lot of green black chunks of plastic in his oil filter?
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05-16-2012, 12:30 PM
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#12
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Registered User
Join Date: Oct 2011
Location: sac. ca
Posts: 156
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Thats the same oil I use... The oil galleys in the M96 engine are huge and will probably flow almost anything.
__________________
98 boxster
82 280sl parts for sale
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05-16-2012, 12:35 PM
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#13
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Registered User
Join Date: Apr 2012
Location: Nor.Cal
Posts: 131
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Quote:
Originally Posted by anti-bling
but i was going to eventually make it seize as the viscosity is too thick.
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You only gonna seize the engine if you ran out of oil in the crankcase, just like what happened to my co-workers sister 80's Supra the engine is so seized the crankshaft wont rotate using a breaker bar. 
__________________
2K Boxster White/Grey Int./Hardtop/TIP
Last edited by Joel-Box-ster; 05-17-2012 at 01:03 PM.
Reason: spelling
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05-16-2012, 01:19 PM
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#14
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Moderator
Join Date: Feb 2012
Location: DFW
Posts: 782
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10-40 is a great weight for your climate, especially summer time. As a matter of fact, I feel that using 0w or even 5w would be too thin. Down here in Texas, with hot ass temperatures of 93F+ a day and three months straight of 100F+ we have Porsche enthusiasts that use 15w-20w-40-50. I personally use 10w-40 high mileage in my car, and have never had a problem. Was actually looking to see if I could find me some 15w-50.
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05-16-2012, 01:23 PM
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#15
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Registered User
Join Date: May 2010
Location: pismo beach, ca
Posts: 140
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Quote:
Originally Posted by JFP in PA
If there is anything "too thick" here, it is your neighbor........................
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.....hahahhahahahahahahahaha 
Thanks all! You guys rock
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05-16-2012, 01:59 PM
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#16
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Registered User
Join Date: May 2008
Location: Toronto
Posts: 2,656
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Quote:
Originally Posted by JFP in PA
If there is anything "too thick" here, it is your neighbor........................
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He might think you're complementing his.... never mind... 
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05-16-2012, 05:51 PM
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#17
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Registered User
Join Date: Jul 2010
Location: California
Posts: 1,859
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Quote:
Originally Posted by BYprodriver
Whats the best bar in Pismo Beach?
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I live 15 minutes from Pismo, Harry's is a fun bar and it's close to the beach.
http://www.qualitysites.com/Harrys/
__________________
Jäger
300K Mile Club
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05-17-2012, 05:42 AM
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#18
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recycledsixtie
Join Date: Nov 2011
Location: Edmonton Canada
Posts: 824
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05-17-2012, 07:54 AM
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#19
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Registered User
Join Date: Oct 2011
Location: Olympia, Wa
Posts: 370
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I always just BYOB to the dunes when I used to live up that way
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05-17-2012, 10:28 AM
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#20
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Registered User
Join Date: Jul 2008
Location: austin
Posts: 824
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Quote:
Originally Posted by Kenny Boxster
10-40 is a great weight for your climate, especially summer time. As a matter of fact, I feel that using 0w or even 5w would be too thin. Down here in Texas, with hot ass temperatures of 93F+ a day and three months straight of 100F+ we have Porsche enthusiasts that use 15w-20w-40-50. I personally use 10w-40 high mileage in my car, and have never had a problem. Was actually looking to see if I could find me some 15w-50.
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I run either 15W-50 in the winter and 20W-50 in the summer.
Mike
__________________
Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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