Greetings, I'm diagnosing a coolant leak, and have replaced my upper and lower radiator hoses as well as heater hoses. We'll see if that's fixed it, I'm unsure at the moment.
Anyway, I put genuine Toyota red long-life coolant in it. However, I'm unsure how much water is left in the system (from when I flushed it with a garden hose connected in a back-flush valve kit I'd installed ).
I'm trying for 50% coolant.
To test the % I've ordered an E-Z Red S102 Anti-Freeze Hydrometer off Amazon for about $10. However I'm unclear as to whether that is the correct tool for this type of antifreeze. I understand some types of coolant require a refractometer, which is more expensive. Does anyone know for certain what tool is required?
