What do you use for engine oil? - Rennlist - Porsche Discussion Forums

Notices
996 Forum
Sponsored by: LN Engineering
Sponsored by: LN Engineering

What do you use for engine oil?

Reply

Old 07-15-2017, 12:23 AM
  #1
993James993
User
Thread Starter
 
993James993's Avatar
 
Join Date: Oct 2005
Posts: 999
Default What do you use for engine oil?

What are folks using for engine oil? I will soon need to change the oil on my '99 C2. For my earlier 911's I use Mobil 1 0W-40. Is that a good choice for the 3.4?

Thanks!
993James993 is offline  
Reply With Quote
Old 07-15-2017, 12:41 AM
  #2
TonyTwoBags
Addict
Rennlist Member
 
TonyTwoBags's Avatar
 
Join Date: Apr 2016
Posts: 1,792
Default

I'm an idiot

wrong tread

@James - You'll get a lot of flak for asking this given how many threads already cover the topic. Spend 30 minutes reading a few threads & you'll get a good feel for what oil meets your intended use.
TonyTwoBags is offline  
Reply With Quote
Old 07-15-2017, 12:49 AM
  #3
murphyslaw1978
Addict
Rennlist Member
 
murphyslaw1978's Avatar
 
Join Date: Aug 2006
Location: Chicago, IL
Posts: 3,428
Default

My car came with fresh 0-40 Mobil 1. I left it there and swapped it for 5-50 for summer/track use only. You can keep using 0-40 unless you are really hot climates.
murphyslaw1978 is online now  
Reply With Quote
Old 07-15-2017, 12:59 AM
  #4
993James993
User
Thread Starter
 
993James993's Avatar
 
Join Date: Oct 2005
Posts: 999
Default

Originally Posted by TonyTwoBags View Post
I'm an idiot

wrong tread

@James - You'll get a lot of flak for asking this given how many threads already cover the topic. Spend 30 minutes reading a few threads & you'll get a good feel for what oil meets your intended use.
Hey, I did a search and nothing much came up on the 996 forum. Go to the 993 forum if you love popcorn.

PS-Tony, my Fister D mufflers should ship next week. I got the ceramic coating.

Last edited by 993James993; 07-15-2017 at 02:20 AM.
993James993 is offline  
Reply With Quote
Old 07-15-2017, 01:02 AM
  #5
993James993
User
Thread Starter
 
993James993's Avatar
 
Join Date: Oct 2005
Posts: 999
Default

Originally Posted by murphyslaw1978 View Post
My car came with fresh 0-40 Mobil 1. I left it there and swapped it for 5-50 for summer/track use only. You can keep using 0-40 unless you are really hot climates.
I live in a really hot climate. 118 degrees a couple of weeks ago.
993James993 is offline  
Reply With Quote
Old 07-15-2017, 01:26 AM
  #6
Chris(MA)
Addict
Rennlist Member
 
Chris(MA)'s Avatar
 
Join Date: Sep 2004
Location: California
Posts: 371
Default

I'm running Castrol Syntec 5w40 and will probably stick with it
Chris(MA) is offline  
Reply With Quote
Old 07-15-2017, 01:27 AM
  #7
Howaboutthat
User
 
Join Date: Sep 2013
Posts: 227
Default

Motul x-cess 5w40.
Howaboutthat is offline  
Reply With Quote
Old 07-15-2017, 02:45 AM
  #8
TonyTwoBags
Addict
Rennlist Member
 
TonyTwoBags's Avatar
 
Join Date: Apr 2016
Posts: 1,792
Default

s
Originally Posted by 993James993 View Post
Hey, I did a search and nothing much came up on the 996 forum. Go to the 993 forum if you love popcorn.

PS-Tony, my Fister D mufflers should ship next week. I got the ceramic coating.
Nice work, I'm excited to be done with exhaust mods .

I use DT40 and have used Mobil 1 0w40 before learning about the engine's propensity to devour oil that doesn't have good resistance to sustained, elevated temps. Switching to Motul 8100 Excess reduced oil consumption for me and now on DT40 I barely went through a quart in the last 3,000 miles. So I'm staying on DT40. Other guys run Motul with success & others have 100+ k miles on Mobil 1. Royal Purple is another one some guys use.

The wet sump system in the m96 isn't the best for high-performance driving, particularly on the track. So 996s are more susceptible to loss of viscosity from running at high temps.

A good DIY you could do is figure out what temps your car runs at (oil & coolant) with your normal use. Then select an oil that works well at that temp + a dozen or two degrees for margin of safety. The inadequacies of the m96 wet sump manifest in localized hot zones, particularly in bank 2 (pax side). So there's a long list of failed m96 engines thanks to bank 2 weaknesses.

Mk1s your main risk is cracked heads, whereas mk2s are more susceptible to cylinders being compromised. From my perspective, a 10-20k+ engine is worth $100 oil. And I drive my car a lot, with 2-4 oil changes per year so far.

Keep on combing through the old threads & you'll find more information to incorporate into your decision making. There's a good Blackstone oil analysis thread that you can participate in to understand what level of metals are running through your engine. If you're running clean oil I think you're in good shape (assuming you don't decide to run the 996 in an endurance race at a track).
TonyTwoBags is offline  
Reply With Quote
Old 07-15-2017, 07:50 AM
  #9
Barn996
Addict
Rennlist Member
 
Barn996's Avatar
 
Join Date: Sep 2007
Location: Kittery, Maine
Posts: 11,625
Default

Originally Posted by Chris(MA) View Post
I'm running Castrol Syntec 5w40 and will probably stick with it


That's my choice as well for a few tears now.
Barn996 is offline  
Reply With Quote
Old 07-15-2017, 07:53 AM
  #10
Barn996
Addict
Rennlist Member
 
Barn996's Avatar
 
Join Date: Sep 2007
Location: Kittery, Maine
Posts: 11,625
Default

Sorry years not tears.
Barn996 is offline  
Reply With Quote
Old 07-15-2017, 10:30 AM
  #11
Southern Man
Addict
Rennlist Member
 
Join Date: Jan 2015
Location: Columbia, SC
Posts: 375
Default

Started running DT40 almost 20,000 miles ago, and now at 166,000 my mild oil consumption (about a quart every 3,000 miles or so) has actually decreased. Oil analysis reports look good, and car runs great.

(You're getting off easy here! When I saw the thread title I thought you would get way more abuse! I've had trouble searching for things in old threads, but oil "discussions" shouldn't be too hard to find.)
Southern Man is offline  
Reply With Quote
Old 07-15-2017, 11:38 AM
  #12
993James993
User
Thread Starter
 
993James993's Avatar
 
Join Date: Oct 2005
Posts: 999
Default

Thanks!

5W-50, change interval 5000 miles/12 months, Blackstone analysis every change.

Appreciate everyone's input!
993James993 is offline  
Reply With Quote
Old 07-15-2017, 12:00 PM
  #13
dgjks6
Addict
Rennlist Member
 
dgjks6's Avatar
 
Join Date: Jun 2013
Posts: 1,542
Default

Walmart now sells Pennzoil Platinum Euro 0w40 for $25 for 5 quart bottle. It is Porsche approved and only $2 more per 5 quarts than the mobil 1 0w40 for those of you with mobil 1 derangement syndrome and want a reasonably priced alternative
dgjks6 is offline  
Reply With Quote
Old 07-15-2017, 01:01 PM
  #14
Chris(MA)
Addict
Rennlist Member
 
Chris(MA)'s Avatar
 
Join Date: Sep 2004
Location: California
Posts: 371
Default

Originally Posted by Barn996 View Post
Sorry years not tears.
good correction, the last thing we need on this forum is more tears
Chris(MA) is offline  
Reply With Quote
Old 07-15-2017, 04:08 PM
  #15
Oregoncoaststi
User
 
Join Date: Nov 2016
Posts: 111
Default

I would never use Pennzoil, or Royal Purple, since I've had my 996 (5 months ), I've used mobil 1 0w40, but might switch to Amsoil 5w40 next change. Amsoil is the only oil i used in my previous car , a track prepped Sti.
Oregoncoaststi is offline  
Reply With Quote
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
crw
993 Forum
13
08-20-2017 05:32 PM
ermed911
993 Forum
49
03-17-2017 12:24 PM
ealoken
944 Turbo and Turbo-S Forum
39
02-03-2017 03:51 PM
Spyder_Man
993 Forum
101
04-20-2016 03:20 PM
Mike J
993 Forum
30
01-22-2016 01:16 PM

Thread Tools
Search this Thread
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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 09:33 AM.


Copyright ę 1998 - 2017 Rennlist.com We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: