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Old 09-18-2014, 10:28 PM   #1
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Fogging motorhome engine

Anybody have tips on how to fog motorhome engine, I have done the generator. 2005 6.0 L V8 vortec engine,
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Old 09-18-2014, 10:45 PM   #2
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Anybody have tips on how to fog motorhome engine, I have done the generator. 2005 6.0 L V8 vortec engine,
I will be the first "What is fogging?" We used the term with HP water in small orifices to cool with a fine mist of water.
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Old 09-18-2014, 10:49 PM   #3
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One form is to "fog" the engine for storage. It is to fog the engine with a petroleum product for long term storage. I believe Seafoam makes a product still for that. I would read the engine/owners manual or go on-line for your particular application. I don't think it's as easy as it once was with modern FI systems. The computer normally tries to compensate for the rich mixture and burn it out.


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Old 09-18-2014, 10:51 PM   #4
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The generator is a simple air cooled carborated engine with no emissions sensors.

The Chevy Vortec, not so simple. I wouldn't mess with it personally. To many air intake and exhaust sensors that can get coated and screw up now AND later while your on the road.

Why are you fogging anything? You plan on leaving everything sit for a year+?

Just start the genny once a month during the off season and you'll be fine. Leave the Chevy engine alone or start it too once a month... Both schools of thought are accepted around here.
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Old 09-18-2014, 10:51 PM   #5
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If you are talking about using one of the aftermarket 'Snake Oil' remedies forget it and save yourself time and money. A well running trouble free engine ain't worth messing with and will give you years of service. My 01' F150 5.4 gets by on routine maintenance with no frills. Still pulling strong at 200,675 miles.
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Old 09-18-2014, 11:00 PM   #6
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If you are talking about using one of the aftermarket 'Snake Oil' remedies forget it and save yourself time and money. A well running trouble free engine ain't worth messing with and will give you years of service. My 01' F150 5.4 gets by on routine maintenance with no frills. Still pulling strong at 200,675 miles.
Wow this is non-flammable oil? What a mess you may have when the exhaust manifolds are getting red!
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Old 09-19-2014, 10:19 AM   #7
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Fogging refers to coating the cylinder walls of the engine with a special foam/oil that sticks to the walls of the cylinder to prevent rust. You must pull all the spark plugs and spray each cylinder and then slowly crank the engine. This was common in the 60's & 70's for long term storage but is no longer recommended for todays engines. You will probable damage computer sensors and air pollution devices for the engine upon start up next season. May even void the warranty. A better solution would be just change the oil and filter and replace "dino" oil with synthetic oil. I would recommend Amsoil.
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Old 09-19-2014, 10:42 AM   #8
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Some "synthetic" oils are made from crude oil.

IMHO you can never go wrong with synthetic oil... Unless your engine is worn out...it gets past the rings/guides worse than conventional oil.


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Old 09-19-2014, 11:01 AM   #9
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True, some are a blend of synthetic and petroleum oil. I would not use them. Most are 10 -20% petroleum. Not worth the money.
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Old 09-19-2014, 11:24 AM   #10
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Been using Mobil 1 since 1978 in all motors with no problems.
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