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Old February 15th, 2010, 02:19 PM   #1
firehawk
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Default Diesel tech info

Copy and pasted from Millerwelds.com


Another hopefull secret for guys like me to cease replacing pistons and injectors on welder diesels manuf before 2007 is to start the use of Diesel lubricant with cetane boost. This newer ultra low sulfur diesel to me is likened to battery acid for your engine. Most #1 pump diesel is something like 39 to 41 cetane. A diesel needs a level of 43 cetane to have it's generator load out to the data plate specification. A ford truck diesel also needs a rating of 43 cetane, that extra boost really jacks your milage up by the way.

An added bonus with the ultra low sulfur diesul is that it has pert near zero lubricating qualities, so nothing much to lubricate your injectors, or governor. For some guys report its like night and day difference.

Oh, I'm presently replacing a piston on a 302D that the fellow was sticking tranny oil into, built up to much carbon on the 3rd injector, heating up and dropping the shield cup and carbon chunk into the cylinder. Made quite a cool $$ mess.

Most if not all of these diesel lubricants with cetane boost have anti gell qualitys so avoid the conditioners as they simply don't burn when used in excess so your engine runs pretty wierd if at all. I tend get several of these machines in the winter months, with over conditioning problems.

Now tranny fuild does lubricate and it does burn though it leaves carbon buildup on your injector shields. too much carbon is not a good thing. and it does not raise the cetane nor does it help with the fuel gelling.
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Old February 15th, 2010, 03:39 PM   #2
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What about oil?
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Old February 15th, 2010, 03:48 PM   #3
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IMO two-stroke at the proper mix FTW. I've heard it builds carbon but used sparingly my 1st gen Cummins loves it, noticably smoother and quieter.

I've also hear from owners that filtered WMO in a 3-4gal per fill up ratio shows some benefit. But neither do anything for gelling. And I run the hell out of mine so I dont worry too much about carbon.
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