Fogging diesels

[bmac]

Ok, this may sound like a stupid question but I don't think I've ever seen it addressed. Do diesel engines need to be "fogged" like gas engines for winterization. If not, why :huh:
As always, thanks ahead of time, I'm sure many of you know the answer to this.

 

[Mr Salt]

In the winterization process you do not fog diesel engines. You do need to stablize the fuel with water absorber. and add biocide. Then run the fuel through the racors and engine for 10-15 minutes to make sure that is is throughout the diesel system. I would expect that fogging oil would ignite at a lower temperature than diesel oil and the result would be ignition before it is supposed to pushing the piston in the wrong direction.

 

[fwebster]

Gasoline evaporates from the upper cylinders, between the top ring on the piston and the deck of the block thereby leaving nothing to protect the metal from corrosion which is why you need to fog a gas engine being stored.

Diesel fuel, unlike gasoline, is an oil. It never completely evaporates from an engine so there is no need for fogging, if you are just storing for the winter.

I once bought a Cummins engine that was in a machine that turned over. The owner just parked it and didn't run it again. I bought it 5 years later. I put a fresh battery in it, fired it up and drove it home. I ran it several years before selling it and it never failed to start and run the whole time I had it. Had fogging been necessary, I would have discovered it in the 3500 hours I put on it.

 

[bmac]

Thanks, guys. This question camne to mind as I was enjoying a few beers with friends yesterday on their boat, discussing getting ready for the winter. I knew there had to be a reason why I hadn't heard of fogging as a recommended practice for diesels and now I know why. The only thing I've added to the fuel for winterizing is a double dose of Startron Diesel additive. So far so good. Thanks again.