[Rio]

Yep. Synthetic oil. Lasts longer and not a petroleum product.

[PSYCHO-FREEP]

Sorry to disappoint you, but most Synthetic oils ARE Petroleum based. The exception is Amzoil which is produced from fish byproducts. But even they use Methanol to create the chemical reaction which synthesizes the molecules. Which comes from petroleum or coal.

All the other American types are made from oil.

[kbennkc]

Yep. Synthetic oil. Lasts longer and not a petroleum product

What is it made from ?