How to Perform a coolant flush
Let's try it on a G-35. The things needed are 2 gallons of engine ice and distilled water, engine flush, drain pan, funnel, safety glasses and some bags. First, remove the radiator cap and drain off the radiator, then re-instal the drain plug. Add one bottle of engine flush, distilled water, then re-instal radiator cap and run engine for 20-30 minutes. Allow engine to cool and the repeat the previous steps using only distilled water until water is present during draining. Then add engine ice and start the motor. This will help improve your car's performance.