Oil Change Question-Problem
Have a 2000, F250SD and was doing my first oil change today.. (3 months). When I took off the oil cap to put the new oil in I noticed a yellow subtance on the bottom of the cap and little down the tube. Does anyone know if this is normal or what it is?
I have never noticed it on any of my other new vechicles.
Thank and look forward to you guys input.
Chris



