I remember seeing a similar goo in my 70 bug oil funnel. I vagely remember reading on a forum what caused it, but just can't remember now.

I have my tranny at Dr Evil's shop so i decided to drain the oil and add the taco plate with a sender today. oil in the pan is fine but when i went to re- fill i found a brown mayo in the funnel.

Anyone know what causes this?
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Moisture. The car needs to be run longer. Once heated up this should go away

That looks like condensation to me, vehicles that don't get warm enough due to really short trips can have that, not uncommon up here. I would change my oil and wipe as much of that stuff off with a paper towel. When you get things back working good get your engine good and warm and run it long enough to burn any more moisture, say 30 minute drive, then check your oil again when the engine has cooled off and see what it looks like.

Ian Stott
Moncton
Canada

makes sense. The last time it ran was for just a few minutes, after I adjusted the valves before I pulled the tranny. The exhaust got hot enough for me to wait a while before I removed it to remove the tranny.

Once I am running again, I'll make a point to see what it looks like.

Thanks for reminding me..... that it is water from condensation. And the vapor will escape once I drive to work, or once take her for a test drive and pop the cherry on the new Dr Evil tranny.

Clark

Clean off the goo in the filler neck with a shop rag and then take the car for a longer drive to make sure the oil gets to operating temperature.

yup condensation. But if youre pcv system isnt hooked up properly it will worsen the problem because air isnt flowing through the engine to air it out so the condensation has nowhere to go