My car coolant is mixing in with my engine oil creating a milky looking oil. So I was wondering should I just change my head gasket? Plus my exhaust throwing out white smoke.

Asked by Mar 11, 2017 at 09:23 PM about the 2003 Nissan Altima 2.5 S

Question type: Maintenance & Repair

I need answer asap!!

5 Answers


All related to a blown head gasket or a cracked head most definitely.


You would have to have the head checked for cracks, and reworked before putting it back on. But if there is a lot of miles on the engine, it would not be worth it to do..

Rowefast my car only has 127,458 miles


I had a good mechanic tell me that once the coolant and oil mix it gets circulated all through the engine and only a complete tear down will do , but of course people do replace head gaskets all the time and drive without a problem . So , what ever .


It depends on how long the engine is ran and the condition of it prior to mixing and of course the worst is to let it sit without draining water and changing oil and turning it over to cover internals without any coolant added first otherwise the oil/water separate and with temp changes condensates on the parts above and starts to rust. Then its a boat anchor.

1 of 1 people found this helpful.

Your Answer


Looking for a Used Altima in your area?

CarGurus has 67,282 nationwide Altima listings starting at $750.


Nissan Altima Experts

  • #1
    Tom Demyan
  • #2
  • #3
    Cassie Sapphire
View All

Related Models For Sale

Used Nissan Maxima
235 Great Deals out of 17,856 listings starting at $1,995
Used Honda Accord
529 Great Deals out of 93,656 listings starting at $1,495
Used Toyota Camry
787 Great Deals out of 71,592 listings starting at $175
Used Honda Civic
341 Great Deals out of 52,141 listings starting at $1,200
Used Nissan Sentra
478 Great Deals out of 50,524 listings starting at $1,695
Used Chevrolet Malibu
604 Great Deals out of 48,316 listings starting at $1,800
Used Hyundai Sonata
397 Great Deals out of 50,392 listings starting at $990
Used Toyota Corolla
643 Great Deals out of 66,145 listings starting at $1,599
Used Kia Optima
371 Great Deals out of 28,940 listings starting at $1,950
Used Chevrolet Impala
375 Great Deals out of 27,000 listings starting at $1,000
Used Hyundai Elantra
394 Great Deals out of 45,304 listings starting at $495

Used Cars For Sale

2018 Nissan Altima 2.5 S For Sale
4 Great Deals out of 12,284 listings starting at $14,977
2017 Nissan Altima 2.5 S For Sale
34 Great Deals out of 2,894 listings starting at $10,690
2016 Nissan Altima 2.5 S For Sale
36 Great Deals out of 3,027 listings starting at $8,980
2015 Nissan Altima 2.5 S For Sale
148 Great Deals out of 4,288 listings starting at $6,920
2014 Nissan Altima 2.5 S For Sale
26 Great Deals out of 1,153 listings starting at $3,900

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.