I used Peak in my Expedition. It was green.
Long life or old school stuff?
I would think if it's green it wouldn't be considered long life. You're supposed to change it every 2 or 3 years, but obviously you know that already being a mechanic. lol
Colour means almost nothing these days, Prestone is Green, but it's chemically basically dexcool.
In case you didn't know, ( not trying to sound arrogant or anything ) when we talk about Green coolant on BITOG we usually mean IAT, a.k.a coolants with conventional inhibitors like silicate, phosphate, borate, nitrite etc.