My 05 has just 50,000 miles on it I took it to the dealer and had them change the fuel filter, clean the injectors and most important of all, had them change the spark plugs The maintainence manual tells you to change the plugs at 100,000 milesDifference Between 50 and 50 Super Duty Later models were equipped with a 49 Liter Li6 engine with some models reaching up to 75 liters Whereas the 11 50 came with a 54 Liter V8 with a 4speed auto transmission It also has 255 hp at 4500 rpm with a 350 foot pound torque at 2,500 rpmFord now offers an engineonly traction control system for all models except the 50 with the 54liter V8, which comes standard with AdvanceTrac traction control The 60liter turbo diesel
03 08 Ford E Series Top Speed
