Join Date: Apr 2013
Location: Chattanooga, TN
As long as the new coolant is compatible with the old, I see no reason to completely flush the system. Most should already be drained from the radiator replacement, and the airlift will suck out the rest when you're vacuum testing the system.
2005 Nightfall Blue Elise: Sport, Touring, Quantum Zeros, Pro Alloy, BWR De-Cat, Stage II, BOE Torque200 tune
Last edited by TachItUp; 05-28-2015 at 10:08 AM.