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Which engine, driven where and how? Driven "normally," 1978 Ninety-Eights got roughly 15mpg in town (with either the 350 or 403 gasoline V8,) while 1978 Ninety-Eight Diesels got about 33mpg on the highway. Which engine, driven where and how? Driven "normally," 1978 Ninety-Eights got roughly 15mpg in town (with either the 350 or 403 gasoline V8,) while 1978 Ninety-Eight Diesels got about 33mpg on the highway.

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16y ago

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