Re: Stringer Upper & Lower Unit ?
N2H2O<br />Question 1 see below.<br />#2 No upper and lower lube are the same, OMC HI-VIS gearcase lube or can use the synetic OMC Ultra-HPF gearcase lube.<br />#3 I do not know. They recommend every 50 hours. I guess if sure no water then may be ok.<br /><br />To remove oil from engine find the garden hose fitting around or near the oil dip stick on starboard side of engine. Attach a hose with standard garden hose fitting then run hose to your pump and pump oil it out. Takes 3.5 qt without filter or 4 QT of 30 weight oil with filter. Fill from the rubber stopper in top of valve cover.<br /><br />Lower unit, drain oil from plug just below the prop shaft on starboard side also remove level plug just above the cavitation plate on starboard side of outdrive to let oil drain. Fill with OMC HI-VIS gearcase lube from the drain hole. It takes 33.8 oz. Keep pumping until oil run out the level plug. Put the Level plug in tight then remove pump and install drain plug.<br /><br />Upper gear case, remove drain plug on outdrive just below ball gears on starboard side of outdrive. also remove dip stick on top of outdrive. Fill from drain hole with 16.6oz of OMC HIS-VIS gearcase lube. I leave the dip stick in the hole but loose and fill until dip stick pushes up. Then put in dip stick tight and remove pump and install drain plug. Then remove dip stick and check level. adjust level from dip stick hole.<br /><br />Intermediate Housing, Drain oil from drain plug on starboard side of intermediate housing just below the ball gears. Also remove fill level plug from intermediate housing just above the outdrive to port side of center. Fill with OMC HI-VIS lube from drain hole or fill hole. Takes 6.25oz. <br /><br />Tilt clutch, drain from drain hole in bottom of tilt clutch. Also remove fill plug from port side of tilt clutch. Tilt clutch in on port side of outdrive but attached to intermediate housing. Fill with 30 weight or 10-30 weight engine oil from the drain hole until run out fill plug. Put in fill plug then remove pump and install drain plug. Check level from fill plug.<br /><br />Also have 9 zert grease fittings that need lubbed with OMC Triple guard grease.<br /><br />Hope this helps and is for your motor.