zman7097

So i have an 05 f150 5.4 screw with about 130000 on it and i checked my oil yesterday when filling my tank and saw i was a quart low. So i went to add one quart and when i pulled my cap saw a milky substance on the backside of cap now im curious should i be concerned? Didnt see anything like it on my dipstick so think it just condensation but not sure.

JarreT329

its condensation. my truck has it as well

powerranger262

You must be taking it on short trips.

zman7097

Thanks guys I was kinda nervous bout it

Thisguyuknow

this q pops up a lot its just condensation its harmless. See it all the time in oil caps at the auto shop

allinon72

My truck does the same. I don't drive short trips so it alarmed me at first. On a cold start I can tell the truck is evaporating the moisture because it bellows out of the tailpipe. There must be something about the 5.4 that creates moisture.