I have a 1988 four winns 215 sundowner with a 5.0 V8 motor and a OMC drive. I was wondering. I drained the oil from the lower plug yesterday. I went to re-plenish the oil from using the bottom and going to where it comes out in the middle plug. I was told I should fill from the middle. Is it ok that I filler from the bottom to it came out in the second plug and then fill from the middle til I see it on the dipsticks? how many quarts should it take 2.5? thanks