I've been running my motor with the hose for short spurts as I've just finished putting gauges, etc. on this old boat. I changed to lower unit oil earlier this summer with no water in the oil and really haven't taken the boat out much. Just a project. I've been noticing when I put it away after a 5 minute run I get some oil/gas stains draining out with the water on my garage floor. Is that just some fuel/exhaust residue coming out with the water as it finishes draining? <br /><br />It is a 115 HP (1978) and has an idle water pressure of about 10 lbs and shifts ok.<br /><br />Any comments would be appreciated... Gary