- Nov 28, 2020
Planning on installing a Zerostart style circulating block heater, but having difficulty finding a low point to tap into the coolant. I've read some that have said robust the block drain below the oil cooler, but mine has a little drain spigot, not just a screw plug, and this would seem to not have enough flow. Anyone done this before? Thinking of using the coolant line for the throttle body, but that is a lot higher, and you want as much height difference as possible for these heaters that rely on convection for coolant circulation.