Review on Zerostart 310 0029 Engine Block Heater by Kevin Henry

Fairly easy install on 2006/2007 Highlander Hybrid (may fit other years) Remove plastic cover to access oil filter area then leave the coolant with from the engine drain block on the left (driver's side) next to the oil filter. Remove the cylinder block heater cover on the right side (fitting side) of the oil filter. Remove 2 pins. Install this unit with the supplied screws and route and secure the power cord. Add coolant and bleed the cooling system, hook it up to an extension cord/external timer, then warm up the car every morning.