What's new
Porsche 911 UK Enthusiasts Online Community Discussion Forum GB

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

Porsche Car Sales

Mayo like stuff in oil filler

N

NeilH

New member
Joined
5 May 2003
Messages
10
I went to top up the oil in my car today (996 C4S). When I took off the filler cap, I noticed that the inside was covered in a thick, yellow substance like mayonnaise or custard.

Should I be worried??

The car also appears to be using a lot of oil.

Any suggestions?

Thanks

Neil.


Migration info. Legacy thread was 11629
 
Sounds like your coolant is leaking into the engine casing and mixing with the water, hence the "Mayo".

Early 996 blocks were prone to going porous, but I thought Porsche had erradicated the problem, better take it back to the OPC

Migration info. Legacy thread was 11633
 
Neil. Yeah it sounds serious. If the car has sat for a while unused, or used for only short journeys it is possible it is just a bit of condensation in the engine, but it is more likey coolant in the oil, as Poon says. Definitely a trip to the OPC.

Migration info. Legacy thread was 11634
 
Guys,

thanks for the feedback.

Booked into OPC - I'll let you know the outcome.

Neil


Migration info. Legacy thread was 11773
 
Neil although it could as Poon suggests ( worst case) 996 are prone to producing this type of junk on the filler cap if you don't drive far enough and fast enough to burn of wter vapour.


Migration info. Legacy thread was 11779
 
Old forum user Unidentified(11139) wrote:

mine does this, i use it every day for very short journeys of around 4 miles. Everyone i've spoke to says the same thing, thats its bound to generate condensation as you're not getting the car warm enough to burn it off, plus the filler cap is so far away from the engine there's no way it can be a water/oil problem or it would appear on the dipstick.

If you get custard streeks on the dipstick - be worried, in the filler tube - no worries just clean it out.

Migration info. Legacy thread was 131834
 
Classic short journey syndrome !

Effects most cars if you only drive for short journeys all the time, as the engine never fully heats up with a run for a sustained duration






Migration info. Legacy thread was 131883
 
As Admin says, mayo in the oil filler cap is a sign of moisture mixing with the residual oil in the neck of the cap... the car isn't being run enough/hot enough to evaporate the water in the neck filler.

Migration info. Legacy thread was 131927
 
Beware what the OPC say.. They may want to cover themselves BUT I have heard both sides of the story.. Definately mine has 'small' amount of mayo when not used much .. It's emmulsification of water & oil.. Particularly this time of year when there's dew in the mornings a small ammount of moisture in the form of condensation is bound to lie in the filler pipe/cap. More importantant is to check if there's OIL globs in the Water.. On many cars this is sign of head gasket or pourosity. Also I think it's made more a problem with the filler cap lying flat.. The people with great experience in this are Autofarm
http://www.autofarm.co.uk/engines/water_cooled

Good luck and don't loose sleep until you know for sure if there's a problem. There's a lot of hype out there !

Migration info. Legacy thread was 132099
 
You must log in or register to reply here.

Similar threads

stupidget
Useful info regarding oil cap. Well I found it useful anyway.
Replies
7
Views
788
Luddite
L
pietrzj
Whale Oil Beef Hooked
Replies
3
Views
510
A993LAD
A
stupidget
Oil pressure doesn't go up to 5 when warmed up.
Replies
2
Views
631
stupidget
stupidget
stupidget
Hoping for the best, fearing the worst!!!
Replies
13
Views
1K
Alex
Alex
J
Oil level confusion and emulsification
Replies
8
Views
1K
deMort
D
Alex
Steve Wright's Serious Moddin' - Cabriolet rear plastic window demister.
Replies
5
Views
634
½cwt
Â
Alex
Cabriolet roof rear window refurbishment.
Replies
8
Views
1K
Alex
Alex
Porsche engine conversion and repair specialist

Latest posts

New Threads

Porsche Model Range

Porsche 911

Porsche 992: 2018- Porsche 992: 2018- Porsche 991: 2011-2019 Porsche 991: 2011-2019 Porsche 997: 2004-2012 Porsche 997: 2004-2012 Porsche 996: 1997-2005 Porsche 996: 1997-2005 Porsche 993: 1993-1998 Porsche 993: 1993-1998 Porsche 964: 1989-1993 Porsche 964: 1989-1993 Porsche Carrera 3.2: 1983-1989 Porsche Carrera 3.2: 1983-1989 Porsche Carrera SC: 1977-1983 Porsche Carrera SC: 1977-1983 Porsche 930 Turbo: 1975-1989 Porsche 930 Turbo: 1975-1989 Porsche Early 911: 1964-1977 Porsche Early 911: 1964-1977

Porsche Hypercars

Porsche 918 Spyder Porsche 918 Spyder Porsche Carrera GT Porsche Carrera GT Porsche GT1 Porsche GT1 Porsche 959 Porsche 959

Other Current Porsche Model

Porsche Taycan : (2019-0%) Porsche Taycan : (2019-0%) Porsche Macan : 2013- Porsche Macan : 2013- Porsche Panamera : 2009- Porsche Panamera : 2009- Porsche Cayman: 2005- Porsche Cayman: 2005- Porsche Cayenne: 2003- Porsche Cayenne: 2003- Porsche Boxster: 1997- Porsche Boxster: 1997-

Porsche Legacy Models

Porsche 928 Porsche 928 Porsche 968 Porsche 968 Porsche 944 Porsche 944 Porsche 924 Porsche 924 Porsche 914 Porsche 914 Porsche 912 Porsche 912 Porsche 904 Porsche 904 Porsche 550 Porsche 550 Porsche 356 Speedster Porsche 356 Speedster Porsche 356 Porsche 356

Forum statistics

Threads
124,536
Messages
1,441,259
Members
48,945
Latest member
kclassicauto

porsche insurance porsche parts porsche sales porsche car sales porsche for sale
porsche classic sales porsche tuning porsche sold porsche specialist porsche engine rebuilds porsche driver training porsche car sales porsche exhausts

Community platform by XenForo® © 2010-2024 XenForo Ltd. XenForo theme by xenfocus

www.911uk.com @Porsche911UK THE DEFINITIVE PORSCHE FORUM Copyright © 911UK 2002-2024 All rights reserved.

911uk.com is not associated and is wholly independent of Porsche Automobil Holdings SE, Dr. Ing.h.c.F.Porsche AG, Porsche Cars GB, its subsidiaries and offical Porsche centres. Any word, phrase or graphic that in any way resembles anything to do with the Porsche name or organisation are registered trademarks of Porsche Automobil Holdings SE and Dr. Ing.h.c.F. Porsche AG.

Back
Top