Re: 3.0 merc
Or what ever you want to use in it. Just change it and the filter every 100 hrs or once a year like you are supposed to, and any oil will work.
Fill it till it's between the add mark and the full mark on the dipstick with the engine level. After the first time of changing it, you will know for sure how much it takes. Somewhere between 4 and 5 quarts is normal. DO NOT overfill
