Re: Gear oil?
OMC/BRP 'HiVis' brand, or any other brand 90 weight outboard gearcase oil. Thick helps with the single lip oil seals.<br />If that really is a 15hp, I don't think Iboats has the proper manual. Check out kencook.com theoutboardwizard.bizhosting.com maxrules.com or marineengine.com for a reprint of the original factory manuals. Well worth the extra 10 bones.
