Has anyone used the Prestone flush kit (the yellow plastic one) to flush their cooling system before vacuum-filling it?
If so, which hose should be cut to install the hose adapter should it be the heater hose? I plan to remove the lower hose to drain the old coolant into a suitable container for proper disposal and will do a final flush with distilled water to ensure it’s clean. Experts, please let me know if I’m going about this the wrong way!