After much deliberation, and studying this website and others about which oil I should run, and reading countless VOA and UOA reports, "synthetic or dino" "group 2,3,4,5 etc....I have chose to run mobil delvac 1300 dino 15w40 in my duramax all year long except the cold michigan winter months (dec,jan,feb), and then it will be a switch to mobil's turbo diesel truck 5w40...I know this is a wise choice, and I know that you cannot judge an oil soley by it's specs, but after reviewing the specs on delvac,delo,and rotella's websites, I just feel better about delvac having the highest flashpoint out of the 3,mainly because I have modded my duramax, and feel that this could benefit me better. It's flashpoint I noticed is higher then some synthetic 5W40 oils which tells me in my opinion that it is a pretty tough oil thermally speaking. It also has a HT/HS rating of a solid 4.3... I have heard that duramaxes in stock form run very high oil temps while towing uphills and running hard, and was concerned of running a 5W40 with a lesser HT/HS number. SO in my opinion I'm am getting the best of both worlds, a great product with a dose of moly for a great price in summer, and a great reasonably priced 5W40 for the winter. Much of my decison was based on UOA reports from some members on here running this delvac in their duramax pickups "arkapig"and "patman" are the main two that come to mind. -ponch
FINALLY made an oil decision!
- Thread starter Ponch
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You have chosen...wisely. I think I've heard that in an Indiana Jones movie...lol
Correction on the members who influenced me...it was "arkapig" and "Dnewton3" not patman.
Hi,
Ponch - I did not influence you - but I can tell you that you have chosen wisely!
Many years ago I compared all of the major mineral HDEOs in very severe conditions. The Delvac HDEOs kept the engine internals the cleanest of all. This is a major practical consideration with diesel engines. Delvac products have a great reputation in durability and consistency
On BITOG and elsewhere they have very little exposure - they are true "sleepers" and achievers!
Ponch - I did not influence you - but I can tell you that you have chosen wisely!
Many years ago I compared all of the major mineral HDEOs in very severe conditions. The Delvac HDEOs kept the engine internals the cleanest of all. This is a major practical consideration with diesel engines. Delvac products have a great reputation in durability and consistency
On BITOG and elsewhere they have very little exposure - they are true "sleepers" and achievers!
Originally Posted By: Ponch
a dose of moly
I don't think Delvac 1 has any molybdenum. My VOA on Delvac 1 SHC (very similar) showed no moly but >200ppm boron, which is a lot considering its' atomic weight is only 10. Boron is usually in antiwear and anioxidant compunds.
Charlie
a dose of moly
I don't think Delvac 1 has any molybdenum. My VOA on Delvac 1 SHC (very similar) showed no moly but >200ppm boron, which is a lot considering its' atomic weight is only 10. Boron is usually in antiwear and anioxidant compunds.
Charlie
Originally Posted By: m37charlie
Originally Posted By: Ponch
a dose of moly
I don't think Delvac 1 has any molybdenum. My VOA on Delvac 1 SHC (very similar) showed no moly but >200ppm boron, which is a lot considering its' atomic weight is only 10. Boron is usually in antiwear and anioxidant compunds.
Charlie
I don't think he's going to run Delvac 1 though is he? I thought he said Delvac 1300 dino (?)
Originally Posted By: Ponch
a dose of moly
I don't think Delvac 1 has any molybdenum. My VOA on Delvac 1 SHC (very similar) showed no moly but >200ppm boron, which is a lot considering its' atomic weight is only 10. Boron is usually in antiwear and anioxidant compunds.
Charlie
I don't think he's going to run Delvac 1 though is he? I thought he said Delvac 1300 dino (?)
Ahh..yes, it looks like you're right. But I believe Mobil uses boron rather than moly in all its' HDEOs, I could be wrong...
Old VOAs from >5yrs ago show ~equal ppm Mo and B in Delvacs, but remember Mo weighs 9.6 times as much as B so we're talking 1/10 the moles for = ppm. And I think they have trended towards more B and less Mo the last few years, at least in Delvacs of all types (M1 TDT is very similar to D1 ESP).
But this is purely a theoretical discussion; whatever they put in makes it a very good performing oil, I use a type of Delvac 1 in my very expensive vehicle.
Charlie
Old VOAs from >5yrs ago show ~equal ppm Mo and B in Delvacs, but remember Mo weighs 9.6 times as much as B so we're talking 1/10 the moles for = ppm. And I think they have trended towards more B and less Mo the last few years, at least in Delvacs of all types (M1 TDT is very similar to D1 ESP).
But this is purely a theoretical discussion; whatever they put in makes it a very good performing oil, I use a type of Delvac 1 in my very expensive vehicle.
Charlie
It is the delvac dino...not the delvac one. I have seen a few VOA's with some moly in it.
dnewton3
Staff member
Congrats, Ponch!
How many miles do you run per year? I would wonder, since you're including synthetic in the plan, if that wouldn't just make sense all year long, and UOA your way to extended OCIs?
Just a note; I agree that you've chosen great products. But I also want to settle the nerves of members that use "other" brands. Generally, I've never seen a Dmax turn in a bad UOA with any dino oil(presuming the mechanical systems are in working order). To say that Ponch has chosen wisely is very true; but it's almost impossible to choose poorly from any of the major market brands.
I recently ran a cycle of Delvac 1300 in my Dmax, and pulled a sample, but never sent it in for a UOA. Why? Because I've seen so many of them, I'm convinced that there was not going to be anything to gain from the UOA, knowlege wise. I don't mind paying for knowledge, but I'm not into wasting money. No fuel, intake or coolant issues in my ride. I'm back to the 10w30 Rotella, because it seems more intersting to run the lighter grade and "bust some myths" to copy a phrase.
How many miles do you run per year? I would wonder, since you're including synthetic in the plan, if that wouldn't just make sense all year long, and UOA your way to extended OCIs?
Just a note; I agree that you've chosen great products. But I also want to settle the nerves of members that use "other" brands. Generally, I've never seen a Dmax turn in a bad UOA with any dino oil(presuming the mechanical systems are in working order). To say that Ponch has chosen wisely is very true; but it's almost impossible to choose poorly from any of the major market brands.
I recently ran a cycle of Delvac 1300 in my Dmax, and pulled a sample, but never sent it in for a UOA. Why? Because I've seen so many of them, I'm convinced that there was not going to be anything to gain from the UOA, knowlege wise. I don't mind paying for knowledge, but I'm not into wasting money. No fuel, intake or coolant issues in my ride. I'm back to the 10w30 Rotella, because it seems more intersting to run the lighter grade and "bust some myths" to copy a phrase.
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I've been looking around for the Delvac 1300 in the 10W30 grade but it seems just as elusive as the DELO 400 10W30 or the Motorcraft. The Rotella 10W30 is readily available... here at least... and I don't see THAT much difference in quality between the three aforementioned 10W30s to make a great deal of effort justified to find one of the scarce ones over the common one. The 15W40 Delvac 1300 is usually a buck cheaper than the Rotella, though, so that bargain the hunter in me laments not being able to score the 10W30 version. I've never actually seen the 10W30 MC on a shelf, either.
I did recently score some of that $11 T5 at WM, but I'll be using that in my Ford Modular VCT experiment because of it's superior CCV over the Triple Protection (6000 cP @ -25C).
BTW, I inquired at Shell over the CCV of the Triple Protection 10W30, which has not been listed since the recent CJ4 reformulation, and they told me, "under 7000 cP @ -25C" The CI and previous versions had been listed at 65XX or 66XX in older data sheets, so that's a reasonable, if distressingly vague and disappointing, answer. FYI, the Delvac is listed at 6500 cP @ -25 and the Delo at 6400 @ -25. The very elusive Motorcraft 10W30 Super Duty oil is at 6200 @ -30, which may make it a little better than the T5 in that area. Wish there was a way to convert the disparate numbers and test methods.
I did recently score some of that $11 T5 at WM, but I'll be using that in my Ford Modular VCT experiment because of it's superior CCV over the Triple Protection (6000 cP @ -25C).
BTW, I inquired at Shell over the CCV of the Triple Protection 10W30, which has not been listed since the recent CJ4 reformulation, and they told me, "under 7000 cP @ -25C" The CI and previous versions had been listed at 65XX or 66XX in older data sheets, so that's a reasonable, if distressingly vague and disappointing, answer. FYI, the Delvac is listed at 6500 cP @ -25 and the Delo at 6400 @ -25. The very elusive Motorcraft 10W30 Super Duty oil is at 6200 @ -30, which may make it a little better than the T5 in that area. Wish there was a way to convert the disparate numbers and test methods.
Originally Posted By: AnarchyX
And Mobil's coffers thank you for your decision.
And why shouldn't we? it's quality proven product that works and works well as with all the "big three".
And Mobil's coffers thank you for your decision.
And why shouldn't we? it's quality proven product that works and works well as with all the "big three".
Jim, if you're looking for the motorcraft 10w30 check your local dealer. I know the two ford dealers near me are using it almost exclusively in powerstrokes vs. the 15w40.
Originally Posted By: roadrunner1
Jim, if you're looking for the motorcraft 10w30 check your local dealer. I know the two ford dealers near me are using it almost exclusively in powerstrokes vs. the 15w40.
Yeah, I just rechecked with my dealer, who didn't used to carry it. $3.39/qt. Not bad, actually. A bit less than the T5 normal price but a buck-fifty to two bucks a gallon more than the Triple Protection Rotella. The 0W30 is $10.95/L... nice sounding oil but I've got an aversion to paying more than about $4/qt for anything.
Jim, if you're looking for the motorcraft 10w30 check your local dealer. I know the two ford dealers near me are using it almost exclusively in powerstrokes vs. the 15w40.
Yeah, I just rechecked with my dealer, who didn't used to carry it. $3.39/qt. Not bad, actually. A bit less than the T5 normal price but a buck-fifty to two bucks a gallon more than the Triple Protection Rotella. The 0W30 is $10.95/L... nice sounding oil but I've got an aversion to paying more than about $4/qt for anything.
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Thanks dnewton3.....I average about 25,000 miles per year. I thought about just running this oil year round, but with my recent cold starting experience with rotella T6 and noticing how much smoother my engine sounds on cold morning, I still am leaning towards using the TDT5w40 in winter.
Originally Posted By: Ponch
I have chose to run mobil delvac 1300 dino 15w40 in my duramax all year long except the cold michigan winter months (dec,jan,feb), and then it will be a switch to mobil's turbo diesel truck 5w40... SO in my opinion I'm am getting the best of both worlds, a great product with a dose of moly for a great price in summer, and a great reasonably priced 5W40 for the winter
You can always add a little more moly if you like... Lubro-Moly MoS2 for about $6 at NAPA, half a can every oil change or a full can every other oil change.
I have chose to run mobil delvac 1300 dino 15w40 in my duramax all year long except the cold michigan winter months (dec,jan,feb), and then it will be a switch to mobil's turbo diesel truck 5w40... SO in my opinion I'm am getting the best of both worlds, a great product with a dose of moly for a great price in summer, and a great reasonably priced 5W40 for the winter
You can always add a little more moly if you like... Lubro-Moly MoS2 for about $6 at NAPA, half a can every oil change or a full can every other oil change.
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