Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 11-18-2010, 11:58 AM   #1
Registered User
 
jacabean's Avatar
 
Join Date: Nov 2009
Location: mass
Posts: 731
winter motor oil

what is the best motor oil for cold ass winter New England driving ?
jacabean is offline   Reply With Quote
Old 11-18-2010, 01:32 PM   #2
Registered User
 
Steve Tinker's Avatar
 
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
Porsche recommended oil viscosity grade 5W40 for use in Scandinavia and Russia. I'm sure their winter temperatures would make a New England winter feel positively balmy......
A lot of people seem to be using Castrol Syntec - I use Shell Helix Ultra but I don't know if you can get that oil your side of the pond.
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.

Last edited by Steve Tinker; 11-18-2010 at 01:35 PM.
Steve Tinker is offline   Reply With Quote
Old 11-18-2010, 03:05 PM   #3
Registered User
 
jacabean's Avatar
 
Join Date: Nov 2009
Location: mass
Posts: 731
my owners manual says for synthetic below 50F use 10w-40 , 10w-30 or 5w-30 but after searching around this forum it seems like no uses those blends . the one thing i do know is that it will be Castrol syntec.
jacabean is offline   Reply With Quote
Old 11-18-2010, 03:07 PM   #4
Registered User
 
jacabean's Avatar
 
Join Date: Nov 2009
Location: mass
Posts: 731
ohh yeah and it does get that cold here !
jacabean is offline   Reply With Quote
Old 11-18-2010, 04:36 PM   #5
Registered User
 
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,329
Approved Oils

Comments and link to a recent list from Porsche
mikefocke is offline   Reply With Quote
Old 11-20-2010, 08:54 AM   #6
Registered User
 
Idaho Red Rocket 3's Avatar
 
Join Date: Oct 2010
Location: Nampa, ID.
Posts: 488
I have a '98 with 127k miles on it. It is running realy well. I have some questions for the forum.

I use M-1 10-30. My son is telling me to use 10-40.
Does 10-30 / 10-40 realy matter ? Which is best ? Is there something better ?

I've noticed many manufacutures going away from M-1 and now endorcing Castrol.
Why ?

Since it is a '98, I have considered using my motocycle oil since that has older style ratings.
Any thoughts ?
Idaho Red Rocket 3 is offline   Reply With Quote
Old 11-20-2010, 09:03 AM   #7
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,142
Yes, the XW-40 weight does matter; XW-30 is too thin for the M96 engine once it is warmed up. Considering your location, something like Castrol Syntec 5W-40 would be a good choice..........

The reason Mobil 1 has fallen from grace is that it has been reformulated into a poor performing shadow of what it once was.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 11-21-2010, 07:59 AM   #8
Registered User
 
jacabean's Avatar
 
Join Date: Nov 2009
Location: mass
Posts: 731
would 10w-30 be ok for winter usage ?
jacabean is offline   Reply With Quote
Old 11-21-2010, 10:56 AM   #9
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,142
Quote:
Originally Posted by jacabean
would 10w-30 be ok for winter usage ?
No; the M96 needs 40 weight on the high side, summer or winter...........30 weight on the high side is not enough.

Look for Castrol Syntec 5W-40 or 10W-40 (my preference).............
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 11-21-2010, 03:43 PM   #10
Registered User
 
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,329
I just happened to be reading page 168

Engine Oil Recommendation in my 986 owner's manual yesterday.

I was amazed to see that 10W30 is actually listed in colder (Below 50F/10C) environments. And then contradicted in bold with a "10W40" or higher statement.

I wouldn't and don't use ..W30 but I wanted to interject this little bit of Porsche's contradictory view into the discussion.

You ought to see the viscosity Honda recommends/uses!
mikefocke is offline   Reply With Quote
Old 11-21-2010, 05:42 PM   #11
Registered User
 
jacabean's Avatar
 
Join Date: Nov 2009
Location: mass
Posts: 731
Now that i spent a little time trying to get a better understanding of what the oil numbers really mean , i guess that 5w-40 would be the oil to use year round . the thin 5w for cold start and the thick 40 for normal operating temps. the only thing i question is in january the temps here can stay down below freezing for some time. In those temps does the oil really make it to the "normal" operating temp ?
jacabean is offline   Reply With Quote
Old 11-22-2010, 12:15 AM   #12
Registered User
 
Steve Tinker's Avatar
 
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
The oil gets to its optimum working (hot) temperature only after about 5-6 miles of driving under normal conditions. The overall oil temperature is controlled (up to a point) by the coolant temperature via the oil / water heat exchanger mounted on top of the crankcase.
One way of causing oil contamination is to drive short distances in cold, humid climates at low temps - this causes high water & fuel contamination to the oil.
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.

Last edited by Steve Tinker; 11-22-2010 at 12:17 AM.
Steve Tinker is offline   Reply With Quote
Old 11-22-2010, 08:59 PM   #13
Registered User
 
Join Date: Oct 2010
Location: Houston
Posts: 41
The dealership put in 0W40 Mobil 1 when they changed my oil. If I understand it all, wouldn't 10W40 be the best choice for Houston?
Surfncpa is offline   Reply With Quote
Old 11-23-2010, 03:58 AM   #14
Registered User
 
Brucelee's Avatar
 
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
Any name brand 0-40 or 5-40 synthetic should do the trick.
__________________
Rich Belloff

Brucelee is offline   Reply With Quote
Old 11-23-2010, 07:07 AM   #15
Registered User
 
Join Date: Jan 2007
Location: BC
Posts: 1,261
If you do your research, you'll find knowledgable people say to to stay away from Mobil1
__________________
2001 Boxster, 5 spd, Seal Grey
clickman is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 03:21 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page