How long do you go before you change it? I want to run Mobil 1 in my newly aquired SVT but was wondering how long I can wait to change it again.

Thanks

98 Lime Green SE w/SVT Kit, Projectors, CF Hood, 18" Rims, GC's, Shaved, System 98.5 Silver SVT #5737 Black FSVT Rims, MSDS, BAT Drop 85 Toyota PU Lifted 06 GSX R 600 Black/Silver My Rides