Interesting news for Delo 400 users...

[Gary - K7GLD]

Dunno if this has been covered on this board yet, but since I am a Delo user, *I* sure found it interesting and welcome news!



http://theoildrop.server101.com/ubb...c;f=11;t=000240



Seems the majority of oil "experts" consider the inclusion of Molybdenum and Boron in lube oil as GOOD thing for improved wear resistance - well, now Delo has it included - Look for the label with the yellow box, and the "New low wear formula", as well as the API CI-4 Plus certification...



Happily, the last case of the stuff I bought is the latest and greatest - and I wasn't even aware of it at the time!

 

[Tony T.]

I use the Delo 400 in my ride, been using it since truck was new, mostly because of the pretty blue jug it comes in :-laf actually it was a toss up between the Delo or Rotella T, I ask serveral diesel owners at the time before I bought my diesel what oil brands where the going thing that most where using an they said either Delo 400 or the Rotella T.



That is good news on the Delo I plan to stick with it for awhile.





Tony

 

[Grey Wolf]

Well Gary I've used Delo for 35 + years and I never had any oil related problems. As a matter of fact I've never know anyone that used Delo that had an oil related problem. I started out with Delo 100, then 200, 300 and now 400 and I don't see any reason to change

 

[RJOL]

This has been my choice in oil for my CTD since new. I now have over 53K on the clock. I get it at Costco. The price used to be around $32-$33 for six gallons, but my last box cost me $37. Guess the price of oil is going up... Oh well...

 

[Bill Stockard]

Yep, I too have been using Delo 400 15W-40 in four Dodge CTDs beginning in 1992. With 5,000 mile change intervals, I've never had an engine problem or oil consumption problem.



Bill

 

[amsoilman]

Well Gary I've used Delo for 35 + years and I never had any oil related problems. As a matter of fact I've never know anyone that used Delo that had an oil related problem. I started out with Delo 100, then 200, 300 and now 400 and I don't see any reason to change

These days, no one should have oil related problems! Some oils are better than others, however.



Wayne

amsoilman

 

[Gary - K7GLD]

Glad you checked in Wayne - what is a typical TAN number for Amsoil after 15,000 miles or so use? Do you have any idea what the new, unused TAN numbers are outta the bottle?



Seems the few TAN numbers I have found in various brands of oil run about 1. 8 or so new, my Delo after 13,000 miles was . 7, and Blackstone commented they thougt it was somewhat acidic - TBN was 8. 4...



Comments?

 

[rbattelle]

Correct me if I'm wrong, but I believe Valvoline Premium Blue has had Moly in it for some time... but only a level of 88 (ppm?). I see Delo has 198!! Wow... how much would be too much? Anyone know?



-Ryan

 

[ssanders60]

Chevron's Delo 400 and Havoline's Ursa, you can't go wrong under

heavy and abusive use, let alone light or medium use.



There are oils of not so good of a reputation, try Kendall, it'll

cook off under heavy duty and in few days of constant work your

dip stick won't touch it. The vender who changed oil in our co.

vehicles used it, I used the oil for diesels in my POV and you could

move the pistons in the cylinder with your thumb when heads were

taken off at 66,000 miles. I'm sure there are others that are no better.

 

[amsoilman]

Glad you checked in Wayne - what is a typical TAN number for Amsoil after 15,000 miles or so use? Do you have any idea what the new, unused TAN numbers are outta the bottle?



Seems the few TAN numbers I have found in various brands of oil run about 1. 8 or so new, my Delo after 13,000 miles was . 7, and Blackstone commented they thougt it was somewhat acidic - TBN was 8. 4...



Comments?

Gary, this is how it was explained to me in the oil analysis class I took:



TAN is a measurement of relative level of acidic material in a lubricant, usually obtained by potentometric (changes of conductivity) or colorimetric (changes in indicator color ) titrations . The TAN is reported in a numeric value, and can indicate the potentail for corrosive wear. Generally, increases in TAN are related to increased oil oxidation or acidic contamination.



I have a note from the class that says "new" oil should have a very low TAN, and will increase with use. BTW, the Amsoil spec sheet for 15W-40 does not give any info on this, but does giive the TBN of >12.



Here is a very good link that explains it much better. When you click on it, go to the T as it is a dictionary.



www.oilanalysis.com/dictionary/default.asp?dictionaryid=389



Wayne

amsoilman

 

[Gary - K7GLD]

Thanks Wayne - I already pretty well knew WHAT TAN is, but have no clue as to what sort of readings are common - we also pretty well recognize that *TBN* is usually around 10+ in new oil, and SOME new oils run a *TAN* of around 1. 5+, but what is considered "normal" for relatively high mileage USED oil? If MY oil at 13,000 miles was thought to be slightly HIGH in TAN at . 7, what would be considered "normal"?



Maybe not too many here really know...

 

[amsoilman]

Thanks Wayne - I already pretty well knew WHAT TAN is, but have no clue as to what sort of readings are common - we also pretty well recognize that *TBN* is usually around 10+ in new oil, and SOME new oils run a *TAN* of around 1. 5+, but what is considered "normal" for relatively high mileage USED oil? If MY oil at 13,000 miles was thought to be slightly HIGH in TAN at . 7, what would be considered "normal"?



Maybe not too many here really know...

Again from my Oil Analysis class, it was quoted as saying "A 50% reduction in TBN is a warning that the additives are becoming depleted and an oil change should be considered. "

So what they are really looking at is the "change" in TBN from a "new" oil. And as you and I know, all oils are different.



As to my last oil analysis (31,500 on the oil) and 40,000 on the engine, my TBN was 11. 72. TAN was not given, however the OXID was 24. 0, NITR was 21. 0, and SOOT was 0. 50. As far as acidity in this sample, there was very little based on these.



Wayne

amsoilman

 

[Gary - K7GLD]

I guess before I, or Blackstone, can come to any informed conclusion, we need to know what the TAN was of the oil when new...



But it would SEEM that typically the TAN numbers would go HIGHER rather than lower as mileage is increased - and the only samples *I* could find for TAN in new oil (none were DELO, unfortunately) was above 1. 5, twice what my 13,000 mile oil was analyzed at...



Here's what Blackstone had to say:



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[Ol'TrailDog]

I've run Delo 400 in all three of my CTDs. Went to Rotella T synthetic for a winter. Then I found out here that it's fake synthetic so back to Delo 400. Get it for a good price at Costco - use to be $34 but now its $37 for 6 gallons.

 

[jmaji]

How about 396,000 miles on my '83 6. 2 litre GMC with only two oil changes of Delo 200 (then 400) 15W-40? Of course I had an Oil Guard oil filtering by pass system on her. The guy I sold her to rebuilt it and told me that there was minimal signs of wear to the parts that was lubricated by the oil. It really made him a believer in the quality of Delo and fact the oil was basically uncontaminated. I think it all boils down to: use good oil and keep it clean.