I used toyota red for piece of mind,but any of the new long life{not dex cool}will probably serve just as well.Try wal mart long life,I have used it and think it works pretty well.Green will work ok,as long as you flush every couple of years.My truck went 130k before needing a pump,and then the radiator looked like new{and I always used distilled water}.Also had no signs of electrolysis when doing valve job,which is someone common on older 22re's.I