I've run Prestone Heavy Duty Coolant (red) in my 97 for the past 10 years or so with no problems. Just sayin.....I called Prestone before I first changed it from the green and they assured me it was compatible with my 97.
2011 F350 4x4 XL Crew Cab Dually
2010 Keystone Fuzion 405 Toyhauler
Last edited by badbart; 11-21-2017 at 08:14 PM.