i have a 96 900SE, and i would like to flush the cooling system before summer here. any of you guys using those prestone back flush systems? also, does the 96 require the green or orange coolant? i believe 96 is the year that GM came out with the orange stuff, but my car still has the green in it, and was wondering if thats the way it should be, or if i should use the orange.

thanks,

matt