Temp gauge going up and down

[v6dreamer]

I did use 50:50 distilled water and coolant.. Siguro madumi na din, weird nga lang kasi around 10,000 kms pa lang tinakbo ng everest ko since I last changed.. What i did now is drain the collant/water, flushed it with a hose for around 5 mins, then poured Wilkins then added Red Line Water Wetter, no longer used any coolant.. Just one bottle of this water wetter is what I did.. Also added an aux fan.. Naging ok naman na..

Friendly advice:
Coolant still your best cooling protection. Of course coolant are not silver bullet but its been using the car manufacturer since then. If you start using that product, youve better start searching the net if that is scientifically accepted in the automotive industry(not what that company said). You'll probably putting more risk your engine than good. Like Bambino said have some body inspect your cooling system. Also keep in mind that coolant mix only with destilled water not TAP water. Pre-mixed coolant is your best bet.

Let me add this also.. Your engine is designed to operate within a specified temperature range. If it doesn't get hot enough, the fuel injection system doesn't work right. If it gets too hot, then engine damage occurs. What keeps your engine in the right temperature range? The thermostats. They constantly open and close to moderate the coolant temperature, and when they wear out the engine temperature starts to fluctuate too much.

This is only a friendly advice, but still the decision is yours.