What happened to gasoline in the mid 1970s?

RustyRatRod said
That's not what I am talking about. You're just looking to argue for the sake of an argument and either "don't get" what I am saying or just want a fight. That's not where I am with this.

When I say it's not measured, I mean at the tail pipe. PERIOD. ALL I was discussing was WHAT the engine BURNS.

RustyRatRod said
I need to clarify. You're talking about the VEHICLE level. What the car itself does. I am not. I am talking about what is measured at a vehicle inspection for emissions out of the tail pipe. There is nothing measured or regulated THERE for evaporative emissions. All of "that" relies on the MIL, CEL or "whatever" you want to call the light on the dash.

No arguing here. Dude asked "Wouldn't gasoline flash off hydrocarbons through evaporation?" It absolutely does. Obviously those HC's aren't emitted through the tailpipe - hence the term "evaporation." Have a good weekend.