If you put used frying oil in a Diesel automobile, you can smell from the exhaust fumes whether it was used for frying potatoes or chickens. Maybe gasoline can be flavored for a similar result?
Bill Amend
If you put used frying oil in a Diesel automobile, you can smell from the exhaust fumes whether it was used for frying potatoes or chickens. Maybe gasoline can be flavored for a similar result?