Honestly we are not that far apart on the actual oil topics, Im just willing to step out away from the owners manual with some of the things I say. I mean, the owners manual gives recommendations, you have to have a guidline of sorts. I dont believe that when a manufacture gives a recommendation that its completly written in stone. (Unless you are under waranty).<br /><br />TOD can walk all over me when it comes to technicalities. Ben Walker does a pretty good job of that also.
<br /><br />As far as funnier goes, I tend to be on the lighter side alright. <br /><br />I guess the reason I "Poke" at TOD so much is that he is a bit stuffed shirt, (and other reasons), and most of what he says can be found in the owners manual.
This is very true and I cant argue that.<br /><br />Delvac1 15W-40 Calcium 2145 - Phos 1074 - Zink 1200<br /><br />Amsoil 15W-40 Calcium 3651 - Phos 1286 - Zinc 1382<br /><br />These Virgin oil analysis were done by the same lab.
What? Delvac1 is a full synthetic, and so is Amsoils 15W-40.<br /><br />This is the kind of crap I have to go through with TheOilDoc, dont tell me I have to go through it with you also?<br /><br />Also, what is your oil capacity in your Cummins. Something like 8-9 quarts? There are Cummins diesels running with Amsoil 15W-40 with by-pass filtration that are still going on the same oil, (Except for makeup oil), for 350,000 miles +. I sure wouldnt try that with Delvac1.
It appears that the only "crap" everyone is going through is your own....<br /><br />
Delvac 1 doesn't even make a 15W-40 oil. Delvac 1 is 5W-40 only.<br /><br />Member Ben Walker is correctly calling the 15W-40 oil (that you incorrectly referenced) Delvac 1300. And it is a petroleum-based oil, not a full synthetic.<br /><br />
"ExxonMobil Delvac Oil Greatly Extends Lube Change Interval - <br /><br />Engineers at ExxonMobil Lubricants & Petroleum Specialties Company announced the results of an engine disassembly after running the 1995 model Detroit Diesel Series 60 for 790,334 miles on ExxonMobil motor oil. The last 396,830 miles of this test were run without ever draining the engine.<br /><br />The engine was used in a Tennessee-based truckload fleet that began using Mobil Delvac 1300 Super, a high performance mineral oil. The test engine ran 393,504 miles in a program that called for oil changes every 25,000 miles. After first using Delvac 1300 Super, the fleet switched to Delvac 1, a synthetic motor oil for heavy diesels. Half the fleet was placed on a program that called for oil changes every 150,000 miles. The other half were run until oil analysis indicated that a change was needed.<br /><br />The engine used in the teardown demonstration had not yet indicated a need for an oil change, although it was approaching 400,000 miles without a change."<br /><br />LubeDude, you can read it HERE. <br /><br /><br />Any honest Amsoil salesman would be discussing Mobil 1 Extended Performace 15W-50 instead of some petroleum-based oil. He would be including the results from independent engine wear tests. Because VOA's and UOA's don't mean much. They tell you what's in the oil, the change interval, and the condition of the engine. Engine wear results are what's important.<br /><br />Member LubeDude, I might suggest you learn and listen from the experts before you start spewing a bunch of nonsense, misinformation, and personal insults. It's bad enough you've had to spin this 100:1 discussion into automotive engine oils just to sell people on Amsoil. It is quite repulsive, much like all the other Amsoil prevarications.
Sorry, miss read it in my haste. My Bad!
But what I posted was the 5W-40 specs.<br /><br />
This is BS, You know this is a commercial engine. I was posting about a regular dodge cummins engine in a Pick-up truck, there is no comparison.
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It wasnt mant to happen, it just did. And Im not that good to spin anything, thanks for the compliment though.
<br /><br />I dont really care what oil people use, and am not trying to sell anything, just saying what I believe to be true. Actually I have Mobil1 in my pick-up at this momment. I never said its a bad oil. <br /><br />Kinda makes me warm and fuzzy inside just to know I used up so much of your time. 
Oh, ok then, back to the couch.
Comparing OA's of 5W-40 oil to a 15W-40 oil doesn't work.<br /><br />Is there a reason you only bring up OA's rather than engine wear tests? Wear results are the only true indicators of how engine oils perform. Is there a reason you don't bring up Mobil 1's 15W-50 Extended Performance oil? This would be a more reasonable comparison of Mobil 1 oil to the Amsoil 15W-40 you reference.<br /><br />And I might suggest you re-read and double check your work before you post due to your constant mistakes, like that one. Particularly since you tend to follow up your mistakes with personal insults.<br /><br />Originally posted by LubeDude:<br /><br />Sorry, miss read it in my haste. My Bad!
I didn't post that to make you upset or jealous. I posted it in hopes that you might inform yourself better.<br /><br />The Detroit 60 is a severe-use heavy duty engine that produces much more power and torque while continuously seeing greater loads and stresses than the light duty pick-up application you reference. There is no reason not to acknowledge Mobil's performance during that extended interval testing, which by the way included actual engine wear tear downs.<br /><br />LubeDude, I think the natives are getting restless on this one. The constant mistakes and misinformation you present are getting tiring. Your efforts to sell everyone on Amsoil are nauseating. You've displayed your level of professionalism and knowledge of oils. Now I might suggest you take a break, maybe study up a little, regroup, and stop the carrying-on.
<br /><br />TheOilDoc, You Know your stuff too, But ya dont read too good. <br /><br />LubeDude, you dont spell worth a cr*p.
Ha, Ha, sounded good at the time. <br /><br />You fit in, you keep me straight, challenging, straight shooting, you dont insert things that have no bearing on the subject, you dont rub me the wrong way. May not mean anything to you, but it does to me. Oh, and you can take a little ribbing and dont take it personally. 
