Really depends how the map was tuned, if the map was tuned for your car on a dyno then it will be fine tuned for your car.
If you are using a generic map, eg another map from another person then this could have some differences such as different fueling etc etc different ignition, remember not all engines are the same and the best way to get the best from your car is to have it Dyno tuned.
Using generic maps is really not the ideal situation, if you run a map that is different, then obviously you can run into problems with it running lean and maybe causing engine damage which will cause an increase in oil usage.
Hope that explains it, best to not to mess with K-Pro maps and not to use a generic map, just get it tuned by a respected tuner and thats that