Waterless Coolant systems...Good or Bad?

[Signature620]

I'd like to add some observations of my own here, as someone who repairs and maintains a heap of late model trucks.

In most trucks I deal with, I will either see:
blue(fleetguard TecPGXL),
green (paccar AllCool),
red (fleetguard Tec Infinity)
or pink (paccar ELC).

I always find leaks on trucks using red/pink coolants and notice they leak at points you never see leaking on identical units with blue/green coolants - Seeping from the seams of heater control valves for example.

I generally recommend the green coolant Paccar sell because it's cheap, works well and in a pinch you'll be able to top it up with green stuff from a truck stop. You just test it every service and change the filter once or twice a year.

Also try a 10psi cap instead of a 15psi if possible - Especially if you aren't running EGR.