N2s, Dilution "sticky" thread will tell you all on what to do to dilute, including creatine-loading.

How much creatine is needed all depends on what your "baseline" creatinine level was before diluting - Each persons baseline is different - and youre not going to know your baseline without testing your urine with a validity test strip. These kits are inexpensive and are found online by doing a Google search for "drug adulteration test kits".

Be sure to do your creatine-loading at least 3 days before the scheduled U/A to allow adequate time for the body to convert creatine into creatinine and be present in the urine (2-3 days).

Creatinine levels must be over 20 mg/dL to be satisfactory. There are no upper limits for creatinine. However, this does not mean you should go overboard with the creatine supps. Too much creatine can result in long unwanted bathroom sessions, sitting on the toilet seat.