oil alarm on 2018 Optimax 250

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oil alarm on 2018 Optimax 250 #15154828 08/08/24 01:02 PM
Joined: Feb 2005 Posts: 4,096 Austin fivebites OP TFF Team Angler
OP fivebites TFF Team Angler Joined: Feb 2005 Posts: 4,096 Austin	May be the wrong section. Ran my oil a little low a couple of weeks ago and got a low oil alarm. Got off the lake immediately, took it home, and filled up the main tank the next day. Took it to the lake last Saturday, took of the cowling, bled out the aux tank til it overflowed, and still getting an oil alarm? Sensor maybe? 2019 Chevy Tahoe 2018 Basscat Eyra 250 Proxs PB Wife of 32 years! PB Largemouth 9.56 Ray Roberts

Moritz Chevrolet - 9101 Camp Bowie W Blvd, Fort Worth, TX - Monte Coon (817) 696-2003

Re: oil alarm on 2018 Optimax 250 [Re: fivebites] #15154873 08/08/24 01:32 PM
Joined: Jan 2009 Posts: 102 H Halfbent Outdoorsman
Halfbent Outdoorsman H Joined: Jan 2009 Posts: 102	I have the same engine, just happened to me. Had to replace the reserve oil tank, think it's a part inside of the tank (something magnetic maybe) that goes bad. Apparently pretty common, happened to my buddy's as well, 2018 merc. They have the tanks on boats.net. sku#884525T1

Re: oil alarm on 2018 Optimax 250 [Re: Halfbent] #15154876 08/08/24 01:35 PM
Joined: Jun 2017 Posts: 2,820 L Lone_Wolf Extreme Angler
Lone_Wolf Extreme Angler L Joined: Jun 2017 Posts: 2,820	Originally Posted by Halfbent I have the same engine, just happened to me. Had to replace the reserve oil tank, think it's a part inside of the tank (something magnetic maybe) that goes bad. Apparently pretty common, happened to my buddy's as well, 2018 merc. They have the tanks on boats.net. sku#884525T1 Its this, I had to fix it on mine this past winter, after that magnet goes out you might as well just replace the whole tank. You can actually disconnect the wire to the sensor as well to shut it up but thats not really an alarm you don't want working it the reserve tank actually does go low.

Re: oil alarm on 2018 Optimax 250 [Re: Lone_Wolf] #15155285 08/08/24 06:21 PM
Joined: Feb 2005 Posts: 4,096 Austin fivebites OP TFF Team Angler
OP fivebites TFF Team Angler Joined: Feb 2005 Posts: 4,096 Austin	Originally Posted by Lone_Wolf Originally Posted by Halfbent I have the same engine, just happened to me. Had to replace the reserve oil tank, think it's a part inside of the tank (something magnetic maybe) that goes bad. Apparently pretty common, happened to my buddy's as well, 2018 merc. They have the tanks on boats.net. sku#884525T1 Its this, I had to fix it on mine this past winter, after that magnet goes out you might as well just replace the whole tank. You can actually disconnect the wire to the sensor as well to shut it up but thats not really an alarm you don't want working it the reserve tank actually does go low. Was afraid of that. Ok, thanks boys! 2019 Chevy Tahoe 2018 Basscat Eyra 250 Proxs PB Wife of 32 years! PB Largemouth 9.56 Ray Roberts

Re: oil alarm on 2018 Optimax 250 [Re: fivebites] #15164823 08/18/24 04:16 AM
Joined: Mar 2016 Posts: 2,018 Pearland, TX D dk2429 Extreme Angler
dk2429 Extreme Angler D Joined: Mar 2016 Posts: 2,018 Pearland, TX	Oil tank on the motor. DO NOT GET A CHINESE KNOCKOFF, ONLY GET OEM MERCURY Learned my lesson on this. Put an aftermarket tank on it and had the same issue. Boat went to the shop, they installed an OEM tank, no more problems. It does matter Majek 22 Extreme/225 Optimax Pro XS hauled by a 2500HD Duramax

Re: oil alarm on 2018 Optimax 250 [Re: dk2429] #15165128 08/18/24 04:44 PM
Joined: Jun 2017 Posts: 2,820 L Lone_Wolf Extreme Angler
Lone_Wolf Extreme Angler L Joined: Jun 2017 Posts: 2,820	Originally Posted by dk2429 DO NOT GET A CHINESE KNOCKOFF, ONLY GET OEM MERCURY good advice, pay the extra and buy the quicksilver part Last edited by Lone_Wolf; 08/18/24 04:45 PM.

Re: oil alarm on 2018 Optimax 250 [Re: Lone_Wolf] #15165328 08/18/24 09:00 PM
Joined: May 2012 Posts: 1,208 Mineola, TX B Bryanmc57 Extreme Angler
Bryanmc57 Extreme Angler B Joined: May 2012 Posts: 1,208 Mineola, TX	Originally Posted by Lone_Wolf You can actually disconnect the wire to the sensor as well to shut it up but thats not really an alarm you don't want working it the reserve tank actually does go low. Just to clarify for someone that might want to do this, you unplug the connector and install a jumper in the plug on the harness (not the tank connectors). Honora Primum Vel Nullum Omnin Honorem

Re: oil alarm on 2018 Optimax 250 [Re: Bryanmc57] #15167254 08/20/24 07:19 PM
Joined: Feb 2005 Posts: 4,096 Austin fivebites OP TFF Team Angler
OP fivebites TFF Team Angler Joined: Feb 2005 Posts: 4,096 Austin	Originally Posted by Bryanmc57 Originally Posted by Lone_Wolf You can actually disconnect the wire to the sensor as well to shut it up but thats not really an alarm you don't want working it the reserve tank actually does go low. Just to clarify for someone that might want to do this, you unplug the connector and install a jumper in the plug on the harness (not the tank connectors). pm sent 2019 Chevy Tahoe 2018 Basscat Eyra 250 Proxs PB Wife of 32 years! PB Largemouth 9.56 Ray Roberts

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