== == well it would all depend on a couple things. like what size tires you have on the truck. a stock 5.0 (302) will get 14 city/18 highway and a stock 5.8 (351) will get about 1 less for each. my '95 5.8 gets an average of 20 after adding flowmaster exhaust and a K&N high-flow air filter.
I got a stock '96 XLT and the best I've ever gotten was 16.8 highway and 14.3 city.
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