Question about condensation or gunk on oil cap

[Hermann]

My 2.7L Tacoma mayoed badly. There was a baffle between the valvetrain and the fill hole. About 4 months of the year I had free mayo. JK

 

[iCurious]

Perhaps in your area is not cold enough to have this problem?

 

[tmorris1]

Most Ford Tritons seem particularly bad about this, at least in cold climates. Doesn't necessarily mean you're getting coolant in the crankcase -- some engines just seem worse about condensation. I'm sure theories could be formed as to why if the overall design was scrutinized.

That is because they had a long-necked fill tube that sat above the valve cover. It was a little cooler near the cap and condensation occurred in the winter. I had a 97 f-150 that was this way and it never hurt anything.

 

[D60]

That is because they had a long-necked fill tube that sat above the valve cover. It was a little cooler near the cap and condensation occurred in the winter. I had a 97 f-150 that was this way and it never hurt anything.

It varies. 2007 F150 2V 4.6, straight into valve cover: