It hit me just a few minutes ago. I was thinking about the treatment rates, then I realized that I've been overdosing my 88 Corolla without knowing it. I usually put 5 or 6 gallons of gas in the car at a time (takes so long to put gas in the tank for some reason) and I usually put 5 ounces of MMO in the tank every other time I get gas. I suppose by only using it every other time I get gas it kinda balances out, but am I hurting anything by running almost twice the recommended rate of MMO in my car?