Is there a special coolant for an Isuzu Rodeo? The SOHC 3.2L All aluminum engine

I've been using Prestone (yellow jug) for the last 150k without issues; but am about ready for another flush - done every 30-35k miles, and would like to know if I should switch.

The radiator is original, no leaks, about to hit the 2nd water pump, going to change out timing belt, pump, tensioner, and antifreeze at the same time.