Installed new valve stem seals

How did you do this? I think i may need to do it. When we got back from our drive last weekend i checked the oil and it was a quart low, WTF.

It does have a main seal or a oil switch leak, but not that bad. There is no oil slick on the bottom of the car or anything.

It doesnt smoke on startup usually or smoke going down the road, but depending on conditions and re-starts after a short drive it will blow a bit of smoke.