Need to flush the system out real good.
Then install the green antifreeze in it ( PRESSTONE ) Is real good.
The orange color.
Dex cool the orange one
Orange Antifreeze
A 1997 Jeep uses the regular green antifreeze.
Dexcool the orange color.
Green
Dexcool
What type of silverado and what is the VIN and I'll tell you.
Use the green color.
1993-1997 uses green. 1998-2004 uses red, five year, hoat type.
Green
Plain green.