coolant change

Went in for oil change and tech says my water pump is weeping just a little.
But the truck does have 203k miles with original pump.
Has anybody flushed the system and went with 50/50 green glycol?
Why I ask all of our other vehicles which are gm I flushed and used it.
So I could use one bottle for topping off instead of having the toyota pink stuff,
dexcool,and the green.I was going to change out the pump,thermostat,
belt,and check the idlers.

 

At 203k I would personally stick with the same toyota pink stuff rather than changing things up. That's just me though.

 

Use Dexcool if you want a cooling system that gels up. Been there. Done that.

As stated by Drivesector - stick with the pink stuff sold at dealerships.

 

No dexcool..I just flushed that crap out of the grand prix.took 2.5 hours.
The new green stuff is silicate free .

 

I've never used it, but this product is also available:

http://www.valvoline.com/products/brands/zerex/antifreeze/105

More info on it inside the URL.