If you are into "traditional green coolant," I'd give Valvoline Zerex Green a shot. It is green, but has a 5 year life, not just 2-3 years. It also had more coolant specs that it met than any other I saw when I was looking up different brands, a while back.
Originally Posted By: pbm
Can traditional green coolant be used in modern vehicles with the only negative being the necessity to change it every 30K/2years?