1979 Chevrolet Bison Tanker, 55-4

1979 Chevrolet Bison Tractor with the Amerada Hess 8,500 gallon tanker trailer. The unit would remain in service together until the tanker trailer was replaced with a new Four Guys 6,000 gallon tanker trailer in 1991. The Chevrolet Bison Tractor was removed from service in 2006 and replaced with a new 2006 Freightliner Tractor.

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