coolant flush necessary?

[caineroad]

I was at toyota dealership and they told me coolant flush is needed but i want to ask on this forum first, my coolant color looks like new, is it still nescessary to change? The official toyota schedule maintainence is to change coolant everyy 120,000km, my car is at 142,000km right now. No problem in cooling, should i still change it?

If so what would the the economical way to do it? Dealer charges over $120

Btw im at dealership changing the drive belt, its making squeaking noise when i start the car. They charge $25 for the belt which sounds reasonable then $55 for half hour labour which also sounds reasonable.