U.S. WCoast Products-Los Angeles gasoline slides on restart

HOUSTON, May 4 (Reuters) - Los Angeles gasolinedifferentials fell on Wednesday as Exxon Mobil Corp's 149,500 barrel per day (bpd) Torrance, California refinery wasrestarting following a 15-month shutdown, traders said. In the Pacific Northwest, differentials were strongerbecause of planned maintenance on BP's 315,000 bpdOlympic Pipeline set to begin on Thursday. The pipeline runsfrom Blaine, Washington to Portland, Oregon. The company alerted shippers to the work in March, aspokesman for BP said. Separately, Shell was conducting planned andunplanned maintenance at the company's 156,400 bpd Martinez,California refinery. * Prompt Los Angeles CARBOB differentials ,fell 7 cents on Wednesday to a 2-cent discount to the NYMEX RBOBcontract. * Unleaded gasoline in Portland, Oregon, was peggedbetween a 9-cent and 11-cent a gallon premium to the NYMEX RBOBcontract, up 3 cents. On Tuesday, it traded at an 8-cent agallon premium to the NYMEX RBOB contract. * Los Angeles CARB diesel was down 2 cents ata 4-cent-a-gallon premium to the NYMEX heating oil contract. * The front-month RBOB contract fell 2.34 cents to settle at$1.4866 a gallon. The June heating oil contract slipped0.58 cent to close at $1.3282 a gallon. (Reporting by Erwin Seba in Houston; Editing by Steve Orlofsky)