Aw, shucks,
Actually, engine oil is readily recyclable. Here in San Jose, we have curbside recycling for everything, including used oil. It (the oil) doesn't really wear out, just the additives wear out, and it gets dirty.
Shoot, remember bulk oil?
At the gas station, if you needed oil, you had a choice of brands or that unknown stuff in the nifty glass quart bottle with the stainless pour spout?
anybody remember this?
Gotta be some old fossils out there reading this that remember...