Rotella?????
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Junior User
Joined: Jan 2004
Posts: 52
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From: Seattle, WA
Rotella?????
Has anyone tried Rotella or Shell diesel oil in the 300? I have heard that the cleaners and chemicals in the diesel oil will help clean out the 300 with no side effects. Anyone try it?
Laughing Gas
Joined: Jun 2003
Posts: 1,218
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From: Parkville, MO (KC)
So long as you are not running a catalytic converter, diesel engine oil is better than oil formulated for gas engines.
Especially to be avoided are the latest in gas oils -- these have reduced anti-wear additives in order to make the modern cats last 105,000 miles instead of the 70,000 that used to be mandated (feds).
My pickup has had diesel engine oil in it for years.
Especially to be avoided are the latest in gas oils -- these have reduced anti-wear additives in order to make the modern cats last 105,000 miles instead of the 70,000 that used to be mandated (feds).
My pickup has had diesel engine oil in it for years.
Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
Originally Posted by cdherman
So long as you are not running a catalytic converter, diesel engine oil is better than oil formulated for gas engines.
years.
years.
Postmaster
Joined: Feb 2003
Posts: 3,439
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From: Spokane WA
all I run is 15w40, summer and winter
diesels run cats now too, it won't hurt the convertor unless your burning oil (which will hurt the convertor anyways)
diesels run cats now too, it won't hurt the convertor unless your burning oil (which will hurt the convertor anyways)
Last edited by oldhalftons; Aug 25, 2005 at 10:23 AM.
Postmaster
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From: La Verne, California
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Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
Originally Posted by frdtrkman
I have heard that the cleaners and chemicals in the diesel oil will help clean out the 300 with no side effects.
my question is when the post said could not use with cat convertor, i just can't see why not.
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Postmaster
Joined: Mar 2002
Posts: 3,545
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From: Coal Region
uh..15W40 is a little thick for a gas engine.
i still dont understand why one would want to use it over a normal gasoline engine motor oil.
the cleaning agents and chemicals sounds like a mis understanding to me. motor oil is rated for a specific type of engine and use. maybe im just being very slow about this but from all my learning i have never heard its good to use.
i still dont understand why one would want to use it over a normal gasoline engine motor oil.
the cleaning agents and chemicals sounds like a mis understanding to me. motor oil is rated for a specific type of engine and use. maybe im just being very slow about this but from all my learning i have never heard its good to use.
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Junior User
Joined: Jan 2004
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From: Seattle, WA
I don't know what is in the diesel oil as far as cleaners and stuff but if it will help remove any kind of build-up internally why not use it. I recently had to change my oil pan gasket and the crank and main caps looked good but there was some thick sludge coating the pan. It has me wondering how the cyclinder walls are as well as everything else (cam, valves, lifters). If the diesel oil will help clean all that without out hurting the bearings and seals then why not use it?
Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
diesel oil is better in every way comapared to a regualr engine oil. diesel oil contains over 1300ppm of zddp a very strong anti wear additive. the limit in gas oil is 800. diesel oils are also much more shear stable and contain high amounts of calcium usually about 1700ppm and boron. the tbn is also much higher. a regualr enigne oil does not even comapre to a diesel oil. most diesel oils are dual rated ci-4+/sl.