Where should the oil level of an engine be located?

Have you tried the following search?

Locating Engine Oil Level - Google Search (http://www.google.com/search?hl=en&safe=off&q=Locating+Engine+Oil+Level)

It we are talking cars and trucks they have a dip stick that u will use to check the level of the oil, it should be between the add and the full.

Here is a great VIDEO and more helpful ones if you need them

How to Check the Engine Oil Level of Your Vehicle Using the Dipstick | Expert Village Videos (http://www.expertvillage.com/videos/auto-fluid-dipstick.htm)

Hope this helps -- Rate my answer