Re: 2003 Mercury 150 Saltwater warning beeps
this is why I no longer have oil injection! Usually by the time the warning goes off it is to late! I would ditch the injection and go with premix
SeaFox,
His warning went off about a half hour at WOT from trouble. That's what it's supposed to do.
Joe,
The grunge is from a little water getting into the oil, and a bacterial action creating the slime. I think I'd use the oil in a lawn mower or something. If you go through it pretty fast, maybe put it through a paint filter, but discard the bottom inch or so in the bottle.
About the only way water could get into the boat oil tank is carelessness when it's being filled, or carelessness handling the oil. I always put full gallons in, so I open a bottle, dump it in, and chit can the bottle.
The zip ties are special full circle hose ties. Get them at your mercury dealer. Most marine mechanics will have a pocketful on hand.
I'd fill the engine tank 3/4 full, then top it off with the engine running by letting the oil system fill it from the boat tank. This is accomplished by loosening the cap on the engine tank.
Just for insurance, I usually mix about an ounce of oil per gallon of fuel in my main tank. That's over 100:1, but I run it very hard, so the 40:1 or so at WOT is beneficial. Also, because I use full synthetic, it probably would let the motor survive a fairly long run to the dock at half throttle if the oiler failed.
Hope it helps,
John