Oil in my coolant tank. What could this be?

20

Asked by Jul 30, 2014 at 11:34 AM about the 2002 Buick Century Custom

Question type: Maintenance & Repair

When I had my oil changed 2 weeks ago, they said I should have my coolant flushed since they saw some oil in it.  They do the flushing.  I have an appointment with my dealer's service department Friday, but am nervous about what this could mean.

9 Answers

35,595

Lots of things. From a cracked block to a bad gasket some place. How's it running?

2 of 2 people found this helpful.
3,095

head gasket

1 of 1 people found this helpful.

Do you trust the people that told you that? Do you know for FACT it has oil in it? I agree with those guys, BohoMark and Colin but it's possible the dealer is trying to take advantage of you, spend money on a flush you don't need. If it is indeed a head gasket, you really ARE blowing money, a big waste to flush it before fixing it.

2 of 2 people found this helpful.
20

It runs fine. Not hot and no apparent problems. Oil Can Henry's is where I have my oil changed and they are the ones that told me. I saw it when my son checked it for me. Almost definitely was oil and quite a bit. The oil, however, has not gone done since the last oil change and doesn't appear to have any water in it. Thanks for your help. Please keep responding.

1 of 1 people found this helpful.
20

The first paragraph I wrote should have said "they (Oil Can Henry's) DON'T do flushing".

1 of 1 people found this helpful.
68,895

Are you lossing oil?If you are,then check head gasket,if you are not,flush it,and see if it return,s.If it doe,s then you defenatly have a head gasket problem.

1 of 1 people found this helpful.
Best Answer Mark helpful
20

Not losing oil. Oil looks good and is still at full line since last change.

20

This is an odd situation, usually coolant ends up in the oil pan. If the engine has been overheated I guess there could be a cracked block or maybe you've lucked out and it's just a head gasket. Either way, I'd use a mixture of 50/50 water and white vinegar, it will cut through any sludge that's developed and when you've found the problem buy straight antifreeze and cut it 50/50 with distilled water otherwise you're paying 6 bucks a gallon for the water in the premixed stuff, distilled water is only around $0.69 a gallon. You want to used distilled because there isn't any mineral in it. Happy Motoring! Good Luck.

1 of 1 people found this helpful.
5

Have you added any radiator stop leak..That will look like oil in the coolant reservoir...Sometimes a cloudy buildup occurs if you have not flushed in a long time also..and of course the old you need a flush routine..

Your Answer

Century

Looking for a Used Century in your area?

CarGurus has 796 nationwide Century listings starting at $1,600.

ZIP:

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    970
  • #2
    Tom Demyan
    Reputation
    800
  • #3
    John Pate
    Reputation
    550
View All

Related Models For Sale

Used Buick LeSabre
16 Great Deals out of 1,779 listings starting at $750
Used Buick Regal
169 Great Deals out of 8,864 listings starting at $4,800
Used Chevrolet Impala
552 Great Deals out of 35,053 listings starting at $900
Used Honda Accord
1,017 Great Deals out of 56,751 listings starting at $899
Used Buick Park Avenue
409 listings starting at $3,995
Used Chevrolet Malibu
962 Great Deals out of 66,189 listings starting at $1,000
Used Toyota Camry
918 Great Deals out of 79,556 listings starting at $750
Used Ford Focus
783 Great Deals out of 54,703 listings starting at $1,895
Used Honda Civic
737 Great Deals out of 69,326 listings starting at $1,499
Used Nissan Altima
944 Great Deals out of 77,047 listings starting at $1,000

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.