Coolant and water question ??

What @Ruthless said.

I did most of mine a while back and had my mechanic replace ALL the truck with the blue stuff and good clamps (see the smooth band on the inside that doesn't bite into the silicone ).

I had one - just one small half inch split off of the oil cooler that blasted out 5 gallons in 15 minutes driving, under an OS load, and it was enough of a PITA to motivate me to replace every last section .

And the oil cooler piece that failed, was black rubber that we reused after the oil cooler repair. Seems to be common to have hose fail after it's been wrenched off then replaced.

These are pieces I have looped up for repairs just in case.

 

Thanks for that - I have in the past used our well water to 50/50 out concentrated. I've replaced the whole lot since. I'll keep the distilled water in mind.

 

The test strips will tell if it’s good or not. Add conditioner as needed. Pen cool, Fleetguard, it’s all about the same. Neutralizes the effects of hard water.

 

Two additional reasons to run proper coolant concentrations:

1). Coolant has a slightly higher boiling point than water, so you may boil your water before the thermostat opens or fan kicks in.
2) Coolant has a higher heat capacity than water, meaning that it can carry more heat per volume, and can therefore carry more heat away from the engine in the same time period than just water.