Originally Posted by Jimbo370

The only search on the topic said read manual. I bought 100% Prestone long life for my Z. I plan on mixing 50/50 here in Florida. the manual said to use drain plug from radiator to do easy flush. then do you flush it with water until clear and run engine till thermostat opens. I was told you will never get all the old fluid out. Any suggestions other than the block plugs. THANKS. I HAVE 64K MILES ON GREEN STUFF. HELLO ANYBODY