BP (British Peto) has bought out Amoco so that company no longer exists. Only the Amoco brand name remains that BP puts on motor oil cans and gas pumps.
Crude oil has a base of either asphalt or paraffin. Motor oil is refined from one of these crude bases or it is a synthetic oil.... made from plastic polymers. The automotive engine oil we buy is one of these three types or it can be a blend of them. Penns Oil is the most common of the paraffin based motor oils. Gas station brand oils are ussually made from asphalt crude oil. Paraffin oil was easier and less complex to refine into engine oil in the 1930's -50's. But with the improved chemical technology of the late 1960's, asphalt based motor oil was vastly improved. The main thing is: Do Not Mix paraffin and asphalt based together. If you do, you run the risk of sludge and incopatability issues arising. If I put brand X into my engine, I keep using that brand to refill until I drain the oil and change the filter. Brant Hollensbe [email protected] DSM Iowa
