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CHEVRON INTRODUCES NEW GRADE OF UNLEADED GASOLINE: BEGINS PHASEOUT OF LEADED GASOLINE

 CHEVRON INTRODUCES NEW GRADE OF UNLEADED GASOLINE:
 BEGINS PHASEOUT OF LEADED GASOLINE
 SAN FRANCISCO, Dec. 9 /PRNewswire/-- Chevron today announced the introduction of Chevron Plus Unleaded, an 89 octane gasoline, in California. The new grade of unleaded gasoline will replace regular leaded gasoline by Jan. 1, 1992, at Chevron's 1,600 service stations and marine outlets throughout the state.
 Chevron began converting its stations in the San Francisco Bay Area and Southern California to the new grade today.
 New air quality regulations, which take effect in 1992, call for removal of lead additives in gasoline. Chevron Plus Unleaded, at 89 octane, provides a new choice for regular unleaded gasoline consumers who are looking for enhanced performance from a product with higher octane and enhanced deposit control, but do not feel they need a premium gasoline.
 The cars affected by the new regulations comprise mostly pre-1975 models, produced before the advent of the catalytic converter, which was designed to meet stiffer air emissions standards. On Jan. 1, the drivers of pre-1975 automobiles will have to use gasoline that no longer contains lead.
 "The most important thing for leaded gasoline customers to know is that their cars can run just as well on unleaded fuel," said Dave Smith, Vice President, Marketing, for Chevron. "Eighty-nine octane gasolines, such as Chevron Plus Unleaded, will fulfill our customers' driveability and performance expectations."
 The 1992 regulations also require certain levels of deposit control additives in gasoline. Smith added that Chevron's unleaded gasolines have contained high levels of deposit control additives for more than 20 years.
 California Department of Motor Vehicles statistics show that 1.6 million passenger vehicles in the state still use regular leaded gasoline.
 Any grade of unleaded gasoline can be used by pre-1975 automobiles. But because these older vehicles generally need more octane (leaded gasoline is 88 octane), knocking and pinging may result from downgrading to an 87 octane regular unleaded gasoline. Eighty- nine octane unleaded gasoline, with slightly higher octane than leaded fuel, is likely to provide the smoothest transition for motorists affected by the regulations. Chevron Plus, like all Chevron gasolines, will contain Techroline(TM), Chevron's patented engine cleansing additive.
 "In spite of the popular misperception, motorists who buy leaded gasoline have always been able to use either leaded or unleaded fuel," said Don Beers, Chevron Product Quality Consultant.
 "There have been minor concerns about valve recession, a condition that can occur when a vehicle that has normally run on leaded fuel switches to unleaded fuel and operates under sustained high speeds and loads. But typical passenger cars and light duty truck engines are now either equipped with hardened valve seats to protect against recession, or their everyday use is not severe enough to cause a problem."
 Chevron Plus Unleaded gasoline will be priced approximately 5 cents higher than regular unleaded. Chevron stations will feature educational pump toppers to let customers know about the unleaded options to regular leaded gasoline. If in doubt, or for more information, consumers are encouraged to consult their owner's manual or personal mechanic.
 Chevron U.S.A. is the largest subsidiary of San Francisco-based Chevron Corp., one of the nation's largest refiners and marketers of gasoline and diesel fuel.
 -0- 12/9/91
 /CONTACT: Mike Libbey, 415-894-4440; or Bonnie Chaikind, 415-894-1200, both of Chevron/
 (CHV) CO: Chevron ST: California IN: OIL SU: PDT


RM -- SF015 -- 0772 12/09/91 19:35 EST
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Publication:PR Newswire
Date:Dec 9, 1991
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