This is the oil cap of a 2002 Toyota Tundra. I have Amsoil 0W30 in it and I use LC20 as well. It's soft and easy to clean. I cleaned the oil cap 700 miles ago so this is the accumulation in 700 miles. What is it and should I worry. What is strange to me is that the oil fill neck has got to be 9-12 inches off the motor so my guess is this is material that has condensed and not splashing on the cap.
I live in Southern California so the climate is not extreme. Just in case it isn't obvious, the junk to the right is a swipe from the cap. The cap was originally covered.
Here is the oil filler neck (but it looks normal to me)
I live in Southern California so the climate is not extreme. Just in case it isn't obvious, the junk to the right is a swipe from the cap. The cap was originally covered.
Here is the oil filler neck (but it looks normal to me)