I found tan color sludge in my oil, isn't that due to a water leak?

Asked by Michael Feb 26, 2014 at 08:14 PM about the 2001 Buick Century Custom Sedan FWD

Question type: Maintenance & Repair

Tan Sludge in oil, I found after I removed my oil cap.

103,735

Reelin68 answered 10 years ago

If you are just looking under your oil cap on the top of the engine, that is a common thing. It's when you drain your oil into an oil pan and it looks like a vanilla smoothie. That's when you worry. That's just a little moisture from starting and stopping.

Mark helpful

20,115

Mike answered 10 years ago

That is residual moisture build up in the engine. This will sometimes happen when the PCV system is not working properly in the engine. Locate the PCV valve and replace it and clean out the coffee milk shake residue on the cap. It will take care of your problem. Good Luck

1 people found this helpful.

Mark helpful

Your Answer:

I found tan color sludge in my oil, isn't that due to a water leak? 2 Answers

Tan Sludge in oil, I found after I removed my oil cap.

2001 Buick Century Custom Sedan FWD

-

Maintenance & Repair
My raditoar shots water out when i start and it is never fulled. I do have a leak but its small and my oil smells burn is this a blown head gasket. Or just need a new water pump and oil change 1 Answer

My raditoar is new and i have a new thermostat contiues to get hot

2002 Buick Century Custom Sedan FWD

-

Maintenance & Repair
Oil in my coolant tank!!!! 15 Answers

There is oil in my cooling tank. I think it's engine oil because we are always having to refill the engine oil. I knew we had a leak somewhere but today when I went to refill the coolant it had a lo...

1998 Buick Century Limited Sedan FWD

-

Maintenance & Repair
i own a 2000 buick century custom. a couple months ago i had oil in my coolant/antifreeze so i had emptied it out cleaned and had put it back. well since that day my car wont start and now pops the IGN 0: cluster, pcm,& bcm 10a fuse. i have replaced the ignition switch, fixed the ignition column, flipped the starter, checked the fuse box yet it still keeps popping.i will be tracing wires to look for a short or grounded wires. any suggestions on what to do? 6 Answers

i own a 2000 buick century custom. a couple months ago i had oil in my coolant/antifreeze so i had emptied it out cleaned and had put it back. well since that day my car wont start and now pops the ...

2000 Buick Century Custom Sedan FWD

-

Maintenance & Repair
My 1999 Buick Century Limited is riding rough and lacking power. I was told there is water in the engine. What can I do to save my car? Anyone ever heard of a product called "Liquid Intelligence 245"? 1 Answer

I was told to buy a product called "Liquid Intelligence 245". It is supposed to be a PERMANENT FIX to a blown head gasket; which is what I was told is wrong with my 1999 Buick Century Limited. Can any...

1999 Buick Century Limited Sedan FWD

-

Maintenance & Repair

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.