What do you guys all get for a vacuum at 70 mph on the free way with cruise on? I went and picked up my car and noticed that it was pulling a vacuum of 20psi. Is this what everyone else is getting?

 

Its kind of hard to be exact because alot depends on the terrain you are on. I see any where from 15 to 5.

 

If I let off the gas pedal completely at 70mph I can get OVER 20psi vacuum.
That also helps you get damn good gas mileage! I got around 33 mpg on my last trip home from work over 25 miles taking it easy on the highway like that.