99mustang38or46

I just added some oil after work today it was alittle low. And when I took the oil cap off it had some white oily substace on the inside of the cap and looked as though it had started to run in a small stream down the tube the cap goes into. I am assuming just condensation but I wanted to ask you guys and make sure. just mostly in the cap. I haven't changed the oil since november but I have only put lik 1200 miles on it since then. So please just tell me it's condensation and by wiping it out all is well!

Adam03GT

That exact thing happend to my car and i FREAKED. Called my buddy up (ford mechanic) and he said its perfectly normal buildup/condensation.

So ya your good.

Mustanggt9589

mine was doing the same thing still think its condensation but i will find out when i start driving her everyday again.

Adam03GT

I drive mine everyday and change the oil just before 3k with a full synthetic. It just happens.

99mustang38or46

cool cool just wanted to make sure thanks

undecided.steve

Normal on cars that are not driven a lot.
Not normal on cars that ARE driven a lot.

For the latter, check the PCV system.

cliffyk

As "undecided" said, it is not normal on cars that are driven a lot--as in 10+ mile trips where the engine gets up to full operating temp and stays there for a while. [/align][/align]That's why short "around town" driving only is considered to be severe service, especially in colder climates.[/align]

Jbauer

Very normal. If you want it to go away, go have a little fun on the highway and clean the PCV valve

jlg32281

It might be normal if it's a small amount. The white oily stuff is a mixture of water and oil. It's never good to have water in your oil. If it is a very small amount, that's normal condensation, but this is also a sign of a blown head gasket. The easiest and best way to have peice of mind is to do a block test. Autozone rents the tool for free. You will have to buy a bottle of solution for the tool. It's about $7 and it's enough to do about 10 test. It's great to have on hand when buying a used car because it really sucks to buy a used car w/ a blown head gasket. (don't ask how I know). The test takes less than 2min and it's super easy. It test for exhaust gases in your coolant system, that's the sure fire way to know. Good luck.

Adam03GT

So mine gets driven every day but i work 2 miles away. Maybe thats why i get the stuff because i dont have a long trip.

In the summer it goes away though because of the frequent out of town car shows.