Prestone Coolant Tester: Is this any good? : r/MechanicAdvice

Prestone Coolant Tester: Is this any good? : r/MechanicAdvice

Prestone AF-1420 Antifreeze/Coolant Tester : Everything Else

Not sure what to make of this, this is a coolant tester. Since were in summer is this a good result? What is the yellow ball doing? : r/ MechanicAdvice

What would cause coolant to go black? : r/MechanicAdvice

Car overheating, coolant boiling out of reservoir : r/MechanicAdvice

Does this look milky to you guys ? Coolant keeps disappearing in my engine and I have to add about 1/4 gallon of coolant ever 3-4 days of normal driving. No leaks

Antifreeze percent determination with Prestone Antifreeze Tester : MGB & GT Forum : The MG Experience

Prestone AF-1420 Antifreeze/Coolant Tester : Everything Else

Blew heater core in '98 S90. How long can I expect this bypass to hold? How to figure out if maybe a bad thermostat or gasket caused this failure through a weakened

trouble with coolant flush : r/MechanicAdvice

I think I've got coolant in my engine oil : r/MechanicAdvice