What kind of antifreeze do you use on your 93 Mercury Topaz?

For a 1993 Mercury Topaz, it's best to use a conventional ethylene glycol-based antifreeze mixed with distilled water, typically in a 50/50 ratio. You can use either green or orange antifreeze, but ensure it meets the specifications for use in older vehicles. Always check the owner's manual for any specific recommendations regarding coolant types and maintenance.