When I took over a Shell station here in the St. Louis area, in the early 70s, thee price of gas at the time was $.44 per gallon. About two weeks later a gas war started and the price of gas dropped to $.29.9. Almost put me out of business, I as making around $.01 per gallon and we had to pump the gas, etc. That number always has scared me.
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.com
Air Meter ID book also available