🚨WARNING: US retailers are RATIONING motor oil as prices quadruple and supplies run dry. Costco has capped purchases at one per customer after nearly doubling prices to $57.99 for 10 quarts. Group III base oil has almost QUADRUPLED since February to a record $12.45 per gallon after an Iranian strike damaged the world's leading synthetic base oil plant in Qatar. Valvoline's CEO says it could take four to six months AFTER Hormuz reopens for supply to normalize, per FT.