What kind of antifreeze for a 2000 Kawasaki Prairie 400?

We have this exact machine and I use Honda's 50/50 coolant. The only reason I do this is because all my other ATVs and motorcycles are Honda. It is okay to use regular, old-fashioned, automotive anti-freeze; I have done this in the past. If it is full concentrate, it can be diluted by 50% with water.