I know a lot of you use Mobil 1. I have been using this oil for many years and have always wanted to have some visible evidence that I spend more to protect my engine. I found this nice metal emblem to brag about what goes in my engine. I stuck it on the fuse box cover under the hood - right near the oil fill cap.
The emblem is a GM part that used to be placed under the hood of Corvettes (it may still be on the new ones). Anyway, I thought it looked cool and for $25 was not too expensive.