Brown milky substance under oil cap
 

Went to top up my oil and found milky light brown coloured stuff under my oil cap.

I'm sure it's a result of my engine overheating a week before.

What does it mean? Coolant in the oil? blown headgasket?

Anything else i should check for?
Thanks

Re: Brown milky substance under oil cap (96BLkGSR)
 

yes your are right. blown head gasket. you got coolant in your oil.

you better get that fixed asap

when you replace your head gasket make sure you also replace your thermostat. thats most likely gone too.

and im not sure if theres anything else. if you want, when you pull off your head check it out and make sure its ok. when i over heated my engine, a chuck was missing from one of my valves.

goodluck https://honda-tech.com/forums/images/smilies/emthup.gif

Re: Brown milky substance under oil cap (yc_dc4mar)
 

x2 https://honda-tech.com/forums/images/smilies/emthup.gif .... or i guess https://honda-tech.com/forums/images...s/emthdown.gif

Re: Brown milky substance under oil cap (yc_dc4mar)
 

Would i not have the same stuff in my oil pan then?

Talked to a reputable engine builder today he explained that during really cold weather and heat cycles condensation mixes with oil to make that...

anything else i should look for before taking the head off?

Re: Brown milky substance under oil cap (96BLkGSR)
 

you could suck up some coolant and check the color of it

Re: Brown milky substance under oil cap (96BLkGSR)
 

Water in the oil possibly... Seriously I asked this exact question to my autos teacher this morning. https://honda-tech.com/forums/images/smilies/emthup.gif

Re: Brown milky substance under oil cap (Shank6510)
 

Cant you do a leakdown to check for this as well?