OK?

Now what?

OK, if we're gong to play THAT game:

Cause and effect....
I put a turbo on my truck.

I didn't change the programming in the PCM for a turbo, so when I'm not in boost it doesn't know it has a turbo on it.

I get better fuel mileage now.

That's cause and effect.

Yeah, I already told you guys WHY, but apparently it was supposed to COST me fuel mileage and it didn't. I don't believe the efficiency changed one single bit when I'm not in boost.