use fogging oil or not??
 

Does anyone still use fogging oil for storage?? I used to use it but can't seem to find the stuff anywhere??

Yup still use it on my motors (carb motors)

yes. should be able to find it just about anywhere.

can't seem to find it, buddy works at napa..gonna try there

Buy it at a jet-ski/PWC shop.

But only use it on your carb motor(s). Do not use on TBI/EFI!

Mercury has their own label of fogging oil, probably triple the price of any other brand......

Has anyone ever heard of this- one of my neighbors (an older gent) said they used to use ATF instead of fogging oil and never had problems. Seems like ATF would foul plugs and gum up the intake tract (carbs only) Anyone??

Thanks,
Rich

Heard of? Yes.
Experience? No.

Actually, ATF is very high in detergents and will actually burn off carbon deposits.

Make your own fogging oil. Mix up some Marvel's Mystery Oil and 2 cycle oil and slowly drizzle down the carb with the engine running. Personally though, I have never fogged my engines for winterization.

You don't keep them long enough to worry! :drink::party-smiley-004::lolhit:

And why is that?

i think it be a good idea to turn over the engines half way through the winter too. just a revolution or two. keep the rings from sticking. which is the main reason for fogging a motor in the first place. spark plugs should be changed in the spring after fogging anyway. not sure why you cant fog an efi engine though. interested in seeing someone post why.

It's in the Mercury books/manuals. It cakes on and can mess up the IAF/MAF sensors.

Merc recommendation is:
1) Dump 1/2 of fuel water separator out and fill with 2-stroke oil, re-install and winterize with this mixture.
OR
2) Run fuel line to fuel pump from small can of gasoline with 2-stroke oil premixed. (Look in the book for the ratio.)

It's discussed on here every year.

On the carb motors I have used ATF for years poor it right down the carb till it smokes out the exhaust

There was an article in Teague on tech a couple of years ago. He reccomended that you used a garden sprayer with mavel mystery oil for the 525efi, 600/700 sci ect.

Been do'n it like that the last few years in my 525's, no probs!!!I just put new filters on at winterization w/ the oil poured in!

I prefer to put the 2-stroke oil in the 1-season-old fuel/water separator (after close inspection for rust); and put new fuel/water separators on in the spring. I've had great luck with this method for going on 10 years.

First time this year, I winterized with a portable tank of non-ethanol fuel as well. I still have stabilized ethanol laced fuel in the tanks, but I'm going to pump that out into my daily driver over the winter.

Well, I beg to differ with Mercury on that.
IAT sensors can be cleaned with a shot of brake clean in about 5 minutes if necessary and there is NO (MAF) Mass Air Flow sensor on any Merc efi and chances of actually getting any foggin oil into the (MAP) Manifold Air Presure sensor are pretty dang remote. Better chance of gumming up the injectors with oil doing it Mercurys way IMHO and that comes from being in the auto business and servicing efi systems for almost 30 yrs now.

that's what i was thinking, based on my 20 year auto experience...:coolcowboy:

Pantera was 6 years and 275 hrs. Isn't that long enough?????
The AT has had 3 seasons and 150hrs and is not going anywhere soon.

I also use my boats often enough that keeping the cylinders coated with oil isn't an issue:coolcowboy:.......unlike some trailer queens:party-smiley-004:

Don't shoot the messenger guys. This has all been discussed here in the past.

ATF

Ditto :drink::drink::drink:

This is what I have always done with the EFI engines, but I still use fogging oil on my carb engines.

I've used ATF for years with no issues. Actually burns off nice.

I pour Marvels Mystery oil right down the carb. Been doing it for years. It does not foul the plugs. :)

1400 hours on a set of efi 502s in a sportfish. Never fogged them, turn them over every 4 weeks or so in the winter as the boats up on the hard. Fire up in April every year and go boating. I have more worries about the ethanol than the fogging but lucky so far.

atf

If the boat is shrink wrapped Fog it!! (since you built a greenhouse/terrarium) if indoor stored heated not necessary but optional...indoor stored not heated (like mine) I fog it to be safe.why not..

I always used the crc fogging oil.But this year I used atf and it seemed to be okay.

I have a feeling Audiofns Formula still has the fogging oil from some 10 yrs ago. :D

Correct Packer- no MAF on my EFIs : ) I put sea foam in a spray bottle and choke those *****es until Spring, then I replace the fuel filters in the spring before I run it - I also use a gas stabizer Seafoam loves keeping moisture out of fuel too - so its two fold

http://www.seafoamsales.com/how-to-u...treatment.html

20 years of Auto Repair haven't failed me to date