Does anyone fog their engines prior to winter storage
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Does anyone fog their engines prior to winter storage
I bought my unit new in the fall of 2009 so this year had been the first year of use. I have a 2009 4 stroke 115 Mercury EFI engine. When I get it serviced next month should I get it fogged? I have heard mixed reviews on this. Eg: Some say it screws up your electronic sensors. Need your help deciding. What exactly do they fog?
Last edited by bigwalleye on Sun Aug 29, 2010 6:30 pm, edited 1 time in total.
Re: Does anyone fog their engines prior to winter storage
Is it a two stroke or four stroke?
2009 Sun Tracker Party Barge, NV Performance Package, 90 HP Merc 4 stroke
36 mph gps...
Cherokee Lake, Tennessee
U.S. Navy 1971-1977
36 mph gps...
Cherokee Lake, Tennessee
U.S. Navy 1971-1977
Re: Does anyone fog their engines prior to winter storage
I've always fogged two-stroke motors. Never fogged a 4-stroke.
2019 Veranda 22 RFL 250SHO
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Usually somewhere on the TN River
- BassFrequency
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Re: Does anyone fog their engines prior to winter storage
whats this winter storage your speaking of?






24' 1989 Starcraft 23.1mph gps
60HP Evinrude
'96 GMC Jimmy "The Demon" custom 8 ball lever 4x4
no muffler or cat. just strait to the back

60HP Evinrude
'96 GMC Jimmy "The Demon" custom 8 ball lever 4x4
no muffler or cat. just strait to the back

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Re: Does anyone fog their engines prior to winter storage
4 stroke.brumbyvet wrote:Is it a two stroke or four stroke?
- badmoonrising
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Re: Does anyone fog their engines prior to winter storage
2 stroke or 4, it's always good to fog before long term storage. Never heard of fogging oil screwing up sensors...it's a possibility that the piston rings may rust and stick to the cylinder walls if you don't and that's a situation you don't want.
Ed, Cheryl, Ethan and Aspen.
2013 Sun Tracker Party Barge 22 w/90 HP Mercury, "Hellrhighwater 2"
2014 E-350 Extended XLT.
Chesapeake City ,MD
2013 Sun Tracker Party Barge 22 w/90 HP Mercury, "Hellrhighwater 2"
2014 E-350 Extended XLT.
Chesapeake City ,MD
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Re: Does anyone fog their engines prior to winter storage
Brandon,
Freaks not aloud to comment

Freaks not aloud to comment



Craig and Paula
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
- Cobra427cable
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Re: Does anyone fog their engines prior to winter storage
Just put some muffs on her ever couple of months and fire it up for 10-15 minutes to let it warm up. This will keep the rings free and give the battery a needed charge.
2008 Sun Tracker Regency
22' party barge w/NV logs
135 HP Mercury Optimax
Kaw Lake, Ponca City, OK.
22' party barge w/NV logs
135 HP Mercury Optimax
Kaw Lake, Ponca City, OK.
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Re: Does anyone fog their engines prior to winter storage
I dread the time it will take me to winterize mine. I have to hook to muffs, then push warm up leaver all the way forward then turn it off. Damn that's gonna kill 10min
Loyd & Betty Meeks
Livin the lake life
2004 Tracker 22 Regency/2010 90 E-Tec. Pulled by Ford 2020 F 250,
McAlester, Oklahoma
Home lake is Tenkiller
Livin the lake life
2004 Tracker 22 Regency/2010 90 E-Tec. Pulled by Ford 2020 F 250,
McAlester, Oklahoma
Home lake is Tenkiller
Re: Does anyone fog their engines prior to winter storage
I've got the same motor, I just do as the book says....pull the plugs, couple squirts of fog oi,l, crank it over a couple times (without plugs in), install plugs and walla....done.
I do believe the term "fogging" originally came from the carburated motors, when they'd start the motor and squirt fog oil into the carb untill it died......walla .....done. now a days, no card, nothing to fog except as noted above.
thats all I do except change oil and lower unit oil. good luck with changing the oil and not making a mess.....I back off the driveway and in the grass for that and have lots of towels on hand. Filter location sucks and drain plug is too far into side, so far I'm 0 for 2 with mess free job, still have the dead grass spot in the yard from last years, BP didnt have shit on me with that one....thats another story.
I do believe the term "fogging" originally came from the carburated motors, when they'd start the motor and squirt fog oil into the carb untill it died......walla .....done. now a days, no card, nothing to fog except as noted above.
thats all I do except change oil and lower unit oil. good luck with changing the oil and not making a mess.....I back off the driveway and in the grass for that and have lots of towels on hand. Filter location sucks and drain plug is too far into side, so far I'm 0 for 2 with mess free job, still have the dead grass spot in the yard from last years, BP didnt have shit on me with that one....thats another story.

2008 Bentley 243 Cruise "Tritoon" w/ Lifting Strakes
115 hp Merc 4-str.
Collinsville, IL.
Boat on Ky Lake
115 hp Merc 4-str.
Collinsville, IL.
Boat on Ky Lake
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Re: Does anyone fog their engines prior to winter storage
fog my i/o every fall. used to run a/f through the cooling circuit, now i just drain the block, manifold & riser.
Re: Does anyone fog their engines prior to winter storage
This is based on a 60 Merc EFI 4 stroke
The only trick I know on the oil change is to tie a towel around the leg below the drain plug with a bungie cord (right on the cavitation plate). Wad up most of it on the side with the plug. This catches oil that runs down the inside and outside if the mid section cover
If you let it sit overnight before you drain the oil, most of the oil will drain out of the filter so it doesn't drip.
Another tip I got from Mercury is to tilt it up and down before you drain the oil to get the last of it trapped in the pistons and other nooks and crannies. That can lead to a false "making oil" call where it is too full with the recommended fill volume because all of the old did not come out.
I change mine occasionally on the lift and I don't "sheen" the water using the towel method. I leave the towel on a while after I am done to get any that is still coming down. Just don't drop the plug
BTW it is a good idea to have a spare drain plug gasket because they do get squashed and look funky. I will put a new one on when that happens. The consequences of a failure are not worth the buck or two one costs at the auto parts store. (I think they are $2.99 for 2 in a bubble pack)
Because of hours I end up doing 4 changes a year.
The only trick I know on the oil change is to tie a towel around the leg below the drain plug with a bungie cord (right on the cavitation plate). Wad up most of it on the side with the plug. This catches oil that runs down the inside and outside if the mid section cover
If you let it sit overnight before you drain the oil, most of the oil will drain out of the filter so it doesn't drip.
Another tip I got from Mercury is to tilt it up and down before you drain the oil to get the last of it trapped in the pistons and other nooks and crannies. That can lead to a false "making oil" call where it is too full with the recommended fill volume because all of the old did not come out.
I change mine occasionally on the lift and I don't "sheen" the water using the towel method. I leave the towel on a while after I am done to get any that is still coming down. Just don't drop the plug

BTW it is a good idea to have a spare drain plug gasket because they do get squashed and look funky. I will put a new one on when that happens. The consequences of a failure are not worth the buck or two one costs at the auto parts store. (I think they are $2.99 for 2 in a bubble pack)
Because of hours I end up doing 4 changes a year.
1974 Harris
70 HP 4 stroke EFI Yamaha
70 HP 4 stroke EFI Yamaha
- BassFrequency
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Re: Does anyone fog their engines prior to winter storage
curtiscapk wrote:Brandon,
Freaks not aloud to comment![]()
![]()

some damn good fishing in the winter bro.

24' 1989 Starcraft 23.1mph gps
60HP Evinrude
'96 GMC Jimmy "The Demon" custom 8 ball lever 4x4
no muffler or cat. just strait to the back

60HP Evinrude
'96 GMC Jimmy "The Demon" custom 8 ball lever 4x4
no muffler or cat. just strait to the back

Re: Does anyone fog their engines prior to winter storage
That doesn't work very well here in Indiana. Water would freeze before it gets thru the hose in Jan. & Feb. I always fog my 2 stroke.Cobra427cable wrote:Just put some muffs on her ever couple of months and fire it up for 10-15 minutes to let it warm up. This will keep the rings free and give the battery a needed charge.
I see bigwalleye is from Manitoba. Never been there but assume it gets a bit cold there also.
2014 Tracker Targa V-18 Combo/ Mercury 150hp 4 stroke
'06 Dodge 1500 QC 4x4 Big Horn Hemi
Sheridan, Indiana
'06 Dodge 1500 QC 4x4 Big Horn Hemi
Sheridan, Indiana
Re: Does anyone fog their engines prior to winter storage
lakerunner wrote:I dread the time it will take me to winterize mine. I have to hook to muffs, then push warm up leaver all the way forward then turn it off. Damn that's gonna kill 10min
Just rub it in Loyd! How is that E-Tec doing?
2014 Tracker Targa V-18 Combo/ Mercury 150hp 4 stroke
'06 Dodge 1500 QC 4x4 Big Horn Hemi
Sheridan, Indiana
'06 Dodge 1500 QC 4x4 Big Horn Hemi
Sheridan, Indiana