:usflag I keep reading the threads concerning 7.3l MPG. Someone always mentions staying under 2000 RPM. Why? What is the engine doing different above 2000? Just wondering.:thanks:
Any mileage gains you get from lowering the RPM's that way are completely lost due to the larger rotating mass and the increased wind resistance.HotSauce2138 said:well what if we got bigger tires and a leveling kit doesnt that have something to do with higher speeds @ lower rpms?