My 2000 v6 owners manual stated to shift around 2000rpms for all gears to obtain the best fuel mileage.
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2000 Dark Atlantic Blue Mustang V6: Mach 1 chin spoiler, cut GT springs front and rear, GT rear bumper cover, carbon fiber cowl, ebay cai, BBK shorty headers, custom h-pipe, GT take off dual exhaust, FRPP aluminum driveshaft, VAP intake spacer
2008 Vapor Metallic Mustang GT Premium: K&N cai, PYPES muffler deletes
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