Jon
Welcome! You've come to the right place. Great guys here - a wealth of knowledge - very willing to help. They have "saved my bacon" several times (I'm fairly new here, too).
FWIW
Two suggestions, if I may, before asking, do a search on your subject. Your question may have already been answered in previous posts.
Also, don't start an "oil thread" (oil question/s) unless you want to catch a bunch of flack. Oil Questions have been WELL covered here.
These are great folks here and you will be glad you came.
Gaither