Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    
  We salute a legendary member of the community.
Thank you for selflessly sharing your wisdom with us...
Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > Porsche 924/944/968 Technical Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Flatsixhead's Avatar
 
Join Date: Feb 2009
Location: Porsche USA
Posts: 112
Garage
Milk on oil cap..

A friend of mind just bought a low mile (43K) 86 951. He said the car runs like a dream and does not run hot (temp is half way between the 1/2 & 3/4 mark) The car was bought for $8500 and had extensive service history + records from day 1.. He came home from a drive tonight and checked the oil which was a little low. When he added oil he said that it looked like a milky substance on the inside of the oil cap. When I asked him if the coolant looked like it had oil in it - he checked and it looked normal (Light green in color) I also asked him to look at the dipstick to see if he could see any milkyness in the oil that came up was negative. Anybody know what milk on the oil filler cap could mean?
Old 11-28-2009, 04:54 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #1 (permalink)
Registered User
 
Join Date: May 2004
Location: Brandon FL
Posts: 370
That is normal, it is condensation collecting in the coolest part of the engine. You can reduce the amount by running the car longer periods of time.
__________________
Rick
99 996C4
06 525XI
87 944S - Sold
77 924 - Sold
Old 11-28-2009, 04:59 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #2 (permalink)
Registered User
 
Flatsixhead's Avatar
 
Join Date: Feb 2009
Location: Porsche USA
Posts: 112
Garage
Cool Thanks.. I just called him and he is super happy!!
Old 11-28-2009, 05:48 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #3 (permalink)
Administrator
 
Z-man's Avatar
 
Join Date: Feb 2001
Location: NJ, USA
Posts: 8,088
Garage
I would still dump the oil to see what's there. I had milkshake inside my oil cap, and it took forever to diagnose - finally found the root of my problem - a cracked head...

-Z-man.
__________________
1989 944S2 - June, 2001 - January, 2014

Visit my homepage!
<><
Old 11-28-2009, 07:30 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Oct 2008
Location: Minneapolis, MN
Posts: 85
I had the same issue as z-man, but there was foam on the cap and at the bottom of the AOS as well as foam on the ball of the dip stick
Old 11-28-2009, 07:55 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #5 (permalink)
Registered User
 
Flatsixhead's Avatar
 
Join Date: Feb 2009
Location: Porsche USA
Posts: 112
Garage
KrazyKarl - What's the AOS? I will call him right away to dump the oil..
Old 11-29-2009, 03:06 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Registered User
 
Join Date: Oct 2008
Location: Minneapolis, MN
Posts: 85
sorry, AOS is the air oil seperator. It's the plastic piece on the back of the engine the oil is poured into. When I dumped my oil I didn't get any separation, it wasn't until I took the valve cover off and saw the crack and a sea of green from the coolant that I knew what the problem was.

Here's what it looked like

Last edited by KrazyKarl; 11-29-2009 at 03:16 PM..
Old 11-29-2009, 03:14 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #7 (permalink)
Registered User
 
Join Date: Jul 2009
Posts: 13
i had the same prob, 10 miles after a $1400 head gasket, my car started to smoke really bad and i had the milky oil, my mech said i had a cracked cylinder, $2800 later i had a 63000 mile shortblock
Old 12-01-2009, 04:06 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #8 (permalink)
Registered User
 
Flatsixhead's Avatar
 
Join Date: Feb 2009
Location: Porsche USA
Posts: 112
Garage
He went from happy to sad in under 4 seconds... Not sure what to tell him but I hope that the milk on the cap is normal condensation. He said that the oil looked normal (a little dirty but not milky or foamy) I feel bad because he bought it after getting a ride in the Silver Bullet.
Old 12-01-2009, 03:36 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #9 (permalink)
Registered User
 
FRporsche's Avatar
 
Join Date: Oct 2006
Location: CA
Posts: 92
If you see milk under the oil cap it's because you need to pour motor oil in there, not milk. Well at least use whole milk, 944s don't like the thin stuff like 1% - not enough milk pressure.

My 944 runs great, and I see condensation on the cap too. Like stated above, it's normal and nothing to worry about. One day when all the moisture is removed from the engine, it will stop (or if you rebuild/clean it). Maybe try seafoaming it and then flush it out with a few oil changes... but that's overkill, it really is fine.
__________________
'87 951 | '87 944 | '93 968 | '84 944 | '87 928 S4 | '82 911

'82 300TD | '77 6.9
Old 12-01-2009, 08:59 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #10 (permalink)
Registered User
 
banana944's Avatar
 
Join Date: Dec 2007
Location: Upton, Massachusetts
Posts: 261
Send a message via AIM to banana944
Oh please dont let these stories worry your friend, its normal.
Old 12-01-2009, 09:29 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #11 (permalink)
Registered User
 
Join Date: May 2004
Location: Brandon FL
Posts: 370
My suggestion:
1. Change the oil (so you know it's fresh).
2. Drive the Car (so it can be enjoyed and get the oil hot to drive out the moister that naturally collects in it).
3. Check oil (minimum weekly).
4. Check coolant (minimum weekly).
5. Drive car more.

Don't worry about the things you can't control.
__________________
Rick
99 996C4
06 525XI
87 944S - Sold
77 924 - Sold

Last edited by rb101; 12-02-2009 at 12:36 AM..
Old 12-02-2009, 12:30 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #12 (permalink)
Registered User
 
DanielDudley's Avatar
 
Join Date: Jan 2007
Posts: 5,905
Unless your engine oil looks like a chocolate milkshake, chances are you are fine. It is always a good idea to check the oil often, at least at every fill up, and look at the coolant level at the same time,

Wipe out the cap and go for a long drive, and my guess is that your friend will never see it again.
Old 12-02-2009, 01:55 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #13 (permalink)
Old 12-02-2009, 01:55 AM
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 09:00 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.