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GOVERNMENT VEHICLES IN TULSA TO TEST LOW-EMISSION GASOLINE MADE BY SUN

GOVERNMENT VEHICLES IN TULSA TO TEST LOW-EMISSION GASOLINE MADE BY SUN
 TULSA, Okla., July 17 /PRNewswire/ -- Sun Company (NYSE: SUN) has begun making a low-emission, ethanol-blend gasoline for use in Tulsa city and county vehicles during a two-month test period that begins the week of July 20.
 The test is intended to help Tulsa stay within the federal ozone limits this summer.
 The fuel, called E-2020, approximates the composition of reformulated gasoline required by the Clean Air Act in 1995, according to Sun. It was developed jointly with EnviroFuels, a Tulsa-based company specializing in alternative fuels. Manufactured in Sun's Tulsa Refinery to assure uniformity and quality control, it contains approximately eight percent ethanol blended with a mixture of raffinate and regular unleaded gasoline with detergents. The ethanol is being supplied by Midwest Grain Products, Inc., of Atchison, Kansas.
 Sun's director of Alternative Fuels Programs, J. Greg Driscoll, said E-2020 is the latest in a series of alternative fuels and gasoline reformulations that Sun is testing. "We are also testing M-85 methanol, Liquified Petroleum Gas, Compressed Natural Gas, low-sulfur diesel fuels, and several partially reformulated gasolines," he said. "We are pleased to be working with EnviroFuels, Midwest Grain Products, and the City and County of Tulsa to test another fuel with the potential of substantially reducing automotive emissions."
 EnviroFuels President Ben Henneke said, "This is an opportunity to test ethanol as a key component of a clean-burning ozone-reducing fuel. Finally we have the farmer, the environmentalists, and the oil companies working together to create cleaner air."
 John Selph, chairman of the Air Quality Committee of INCOG, a regional council of governments that oversees air-quality matters in the Tulsa area, said, "We are pleased that Sun is voluntarily making available this clean-burning fuel, and we are especially pleased that under our new emissions


reduction intersource trading program, referred to as MERIT, Sun will be able to keep a portion of the emissions reductions credits for their use or use by other companies in the Tulsa area. This proves that these programs in Tulsa and other cities can provide industry with proper incentives for early pollution reductions and for innovative solutions to our pollution problems."
 The purpose of the test is to help Tulsa stay within the EPA ozone limits this summer. Ozone is a pollutant produced by emissions of hydrocarbons in the presence of sunlight, especially in the summertime. Preliminary tests on three vehicles -- a 1981 Chevrolet C-10, a 1985 Chevrolet Impala, and a 1991 Chevrolet Caprice -- showed substantial reductions in hydrocarbon and carbon monoxide emissions using E-2020. Nitrous oxide emissions increased on the C-10, decreased on the Impala, and were unchanged on the Caprice. Fuel mileage was essentially unchanged.
 Sun said that 8 percent ethanol provides more than 2 percent oxygen content, as required for 1995 reformulated gasoline. Raffinate, produced in the refining process, has low vapor pressure and contains no aromatics. Its use therefore substantially reduces the aromatics content of gasoline -- a change that is also required by 1995. Although raffinate is low in octane, when blended with the high-octane ethanol, its octane rating is raised to the desired level.
 Sun will not sell E-2020 directly to the city and county but rather to gasoline distributors that bid on or have supply contracts with the city and county.
 Sun Company is an energy company with interests in U.S. and Canadian petroleum refining and marketing; crude oil and natural gas exploration and production outside the United States, including synthetic crude production in Canada; and domestic coal and coke production.
 /delval/
 -0- 7/17/92
 /CONTACT: Bud Davis of Sun Company, 215-977-3485/
 (SUN) CO: Sun Company Incorporated; Midwest Grain Products, Inc.; EnviroFuels ST: Pennsylvania, Oklahoma IN: OIL SU:


CC -- PH014 -- 0187 07/17/92 11:09 EDT
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Date:Jul 17, 1992
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