Actually no. That said,
Chances of you actually seeing any non-compatable green coolant on any store shelves is just about nil.
If you want to continue using green coolant, go with Zerex 5/100000. It is a low silicate formula and is exactly what Chrysler used to use before they went to G-05
Prestone is a High silicate formula and is said to promote faster wear on waterpump bearings. It also leaves geen slime in the recovery bottle.
I would use the "new" Zerex G-05. It is comapatable with just about everything. It is almost colorless and is used by all the new Ford and Chrysler vehicles. Chrysler coolant is orange but thats only because they specified an orange dye from their provider. It is ,in fact, the same as Zerex G-05.
