What type of freon is used on a 1998 Honda accord ex?

Answer 1

Your car should use R134a. The manufacturers switched in the early 90's.

The easy way to tell is have a look at the sticker under your hood. Every car I've looked at has a sticker that says some basic emissions data, engine size, and the type of refrigerant used.

The other way to tell is to look at the two charge ports. You'll find them on the silver coolant lines, under large plastic plugs that look like tire valve caps. R134a systems will have a quick disconnect fitting (a ridge, not a thread). R12 will have threaded fittings for the hose.

If you have a car that uses R12, it should be converted to R134a. The process isn't very hard, and the parts are available at most auto parts stores, if you have a vacuum pump and recovery unit.

A R12 to R134a conversion kit comes with fitting converters, a flush kit (you can NOT mix R12 and R134a. Bad things happen to your equipment), and the recharge freon and oil.