...so I did a flush and fill today but I barely used a gallon of the premix....manual says approx. 6.9 qts. is capacity....what gives? Yes I got air out...drained the block too...
Not sure this applies to the Vibe, but the heater setting should be on "hot" when draining coolant to help get it all out of the block. Also, when doing a drain/refill for the first time on a car I haven't done before I always measure what comes out and compare that to what goes back in! And as Triz says, watch it closely for a while.