TM 9-2320-209-20-3-1 e. Neutralization. FRAME 1 NOTE Use two bottles of sodium silicate. 1. Fill engine cooling system with water. 2. Start engine and let it run until engine temperature is 160°F to 180°F. Refer to TM 9-2320-209-10. 3. Slowly pour neutralizer solution into filler tube (1). 4. Put on filler cap (2) and press down and turn it all the way to the right. GO TO FRAME 2 TA 083304 6-67