Years ago when I was manager of a car wash, this guy brought his charger with a 383 engine in that was knocking real bad. We took his valve covers off and most of the rockers were getting no oil. We put a can of the ATF in a within a minute the oil was spraying over the engine. We also dumped some car cleaner like Denny mentioned, just enough to keep the engine going and talk about smoke. It filled the whole bay up.