Oil pan Which one? 408!

Yup. I doubt you can use the dipstick readings, that's what the oil level plug is on the side of the pan for. Fill it up the first time and check the level with the plug, then mark it on the dipstick.

That is what that second plug is for? Thanks for the tip.

One thing I don't like is the drain plug is on the front of the pan. Easy to get to yes but you have to jack the back of the car up to get all the oil out. Minor but when not put drain in the back of the pan??