What is this gunk?
10-05-2017, 12:22 PM
#2
Well, you've been around here a long time so I won't suggest it looks like moisture in your oil and you need to drive your car more to get it up to operating temperature...but it does look like moisture in your oil. I hope it's not a blown head gasket. This is your new engine, right?
10-05-2017, 01:00 PM
#3
Rennlist Member
First thing that crossed my mind is the low temp thermostat in combination of the cooler fall weather so I went out and checked my car. It was clean and I do plenty of short trips too so I think you can rule out the low temp t-stat
10-05-2017, 01:02 PM
#4
Did it suddenly drop in temperature where you are?
10-05-2017, 01:12 PM
#5
it can be common for cars that are not driven too much at operating temps......as long as there is no intermix with coolant just change your oil on time. if you want you could clean that with a rag but for the most part it happens....maybe take a good look at the oil when you drain it. if it is not through out the engine you will be fine
10-05-2017, 01:19 PM
#7
It has already been stated, short trips or driving in very cold weather is normally the culprit because your oil never reaches normal operating temperature.
What type oil do you use...synthetic or normal petroleum based?
The reason I ask is I have rarely seen a Porsche that uses fully synthetic oil with those "gunk" deposits.
We used to see that gunk in the old air-cooled 911's, especially in the winter. The reason was the engines were mostly using conventional oils and would rarely reach their normal operating temp in the cold weather.
Get out and drive, and drive it like you stole it!
What type oil do you use...synthetic or normal petroleum based?
The reason I ask is I have rarely seen a Porsche that uses fully synthetic oil with those "gunk" deposits.
We used to see that gunk in the old air-cooled 911's, especially in the winter. The reason was the engines were mostly using conventional oils and would rarely reach their normal operating temp in the cold weather.
Get out and drive, and drive it like you stole it!
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10-05-2017, 01:30 PM
#8
Rocky Mountain High
Rennlist Member
Rennlist Member
As others have stated, you’re not running the car long enough to burn off the moisture. In cooler weather, moisture in the engine condenses in the oil filler tube. It eventually emulisfies into the gunk you found in the tube and on the cap.
10-05-2017, 01:37 PM
#9
Yes moisture mixed with oil.
Clean the spout and the cap, carefully.
Run the car for an hour or so and if it has not disappeared, then it is a blown head gasket (slowly leaking). Ultimately, that gunk will turn into Mayonnaise and you know that the gasket needs to be replaced.
Hopefully, your new engine is still under warranty.
Yves
Clean the spout and the cap, carefully.
Run the car for an hour or so and if it has not disappeared, then it is a blown head gasket (slowly leaking). Ultimately, that gunk will turn into Mayonnaise and you know that the gasket needs to be replaced.
Hopefully, your new engine is still under warranty.
Yves
10-05-2017, 02:21 PM
#10
Drifting
Thread Starter
It has nothing to do with getting it to temp. Was on 600km drive a few days ago. Weather has been unseasonably warm. Think I have my answer
thanks for the input guys
thanks for the input guys
10-05-2017, 04:53 PM
#11
Rocky Mountain High
Rennlist Member
Rennlist Member
Maybe some previous drives weren’t long enough?
10-05-2017, 05:02 PM
#12
RL Community Team
Rennlist Member
Rennlist Member
An old tip:. Check your exhaust tips.... If one looks clean, then sniff the fumes while running the engine.... If sweet smelling, it is usually a cracked head. Coolant will clean an exhaust.
Peace
Bruce in Philly
Peace
Bruce in Philly
10-05-2017, 05:43 PM
#13
10-05-2017, 08:34 PM
#14
Nordschleife Master
Take a look in your antifreeze reservoir. Its not a blown headgasket (thats not a Porsche thing) but super common to have the oil cooler on top of the engine fail and mix oil and anti-freeze. We change LOTS of them. Also check Oil Serperator
