I just drove about 8 hours straight and I noticed that after about 5 of driving the A/C would fluctuate in temperature, going from 40-50 and vice versa. I'm just wondering if this is simply a lack of freon or another problem? It's a 95 EX sedan.

Any advice would be appreciated, thanks.

 

Might be the compressor cycling on an off. At least its blowing consistently cold around that range so you should be good.