Blackstone - used oil analysis

[Burla]

Some people think the fact the 0w40 PUP goes thin is a bad feature of the oil, I feel the opposite is true. That is why I am high on this oil, it is a great 30 weight oil.

 

[fijicorey]

5w20 PP. Probably will push to 7,500 interval next time but not much further Filter was a Bosch distance plus.

 

[bassheadhemi]

here's the result after going with pup 5w30


Sent from my SM-N950W using Tapatalk

 

[Burla]

I would like to post that in syn thread badasshemi, that shows a reduced wear with the 5w30 over the 5w20, great info and report right there.

 

[SETEX 6.4]

Just got my second analysis back.
This is with 60,903 miles.
Ran 9,695 mile on this oci.

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[Burla]

That oil looks great, just wear numbers don't. I am kinda puzzled, at 60k miles your wear should be less with that oil imo. Nothing to worry about, but I might try a different oil?


What oil did you have the first uoa on that page? that looks good. Looking at those numbers, looks like 7500 miles is a better oci for you. That extra 2k miles had almost twice as much wear.

 

[SETEX 6.4]

That oil looks great, just wear numbers don't. I am kinda puzzled, at 60k miles your wear should be less with that oil imo. Nothing to worry about, but I might try a different oil?


What oil did you have the first uoa on that page? that looks good.

So in your opinion do the wear numbers also look high in my first analysis?
First one was just under 8000 miles and this second one was just under 10000 It was there recommendation to go 10000 based off the first test.
Engine runs great no tick except on a cold start but that's once maybe twice in an oci.
Just the normal hemi lifter noise of the engine running.
So Burla are you saying I should run some redline 0w-40?

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[Burla]

What was the first oil? also PUP 0w40? In their defense, I;m sure they wouldn't predicted the wear numbers climb like that, I like PUP 0w40, I like the wear numbers at the 7500 mile mark, but where you went wrong imo was the extended miles. I would change my oil earlier.

 

[Hemi395]

That aluminum is a bit concerning as well as the low flashpoint and fuel present. I would go back to 7000 miles and see what happens. PUP 0w40 is a great oil though!

 

[Burla]

So what a lot of guys do when this happens is do a wear per miles, so take the iron wear and divide by miles. The higher wear number is .005 per mile, and the lesser wear uoa is .003 per mile. That is a high cost for the extra 2k miles. And no tbn? I wonder if you had a tad of corrosion as well. Anyhow, real smart you doing these uoa's. In your situation you may just want to opt for a 7500 oci problem solved.

 

[SETEX 6.4]

What was the first oil? also PUP 0w40? In their defense, I;m sure they wouldn't predicted the wear numbers climb like that, I like PUP 0w40, I like the wear numbers at the 7500 mile mark, but where you went wrong imo was the extended miles. I would change my oil earlier.

Yes I've ran only pup 0w-40 with WIX synthetic filter since brand new.
I only went longer oci at their recommendation.

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[SETEX 6.4]

Ok so I will go only 7500 to 8000 this time and run another sample and see how it goes.
Thanks for the input guys.

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[Burla]

As far as their recommendation, maybe it was reasonable with the data they had. But with this data, I would simply go back to PUP 0w40 and a wix filter and change oil at 7500 miles. Great oil and first uoa was as good as anything. The oil looks great, it was just run too far imo.

 

[SETEX 6.4]

As far as their recommendation, maybe it was reasonable with the data they had. But with this data, I would simply go back to PUP 0w40 and a wix filter and change oil at 7500 miles. Great oil and first uoa was as good as anything. The oil looks great, it was just run too far imo.

Thanks Burla.
That's exactly what I'm gonna do.

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[Ramnewbie]

Not that I'm saying I totally buy the techs explanation at the local ram dealer but he said in his opinion it was extended oci's that was causing alot of the cam/lifter issues. This kinda backs that up to some extent.

Sent from my XT1650 using Tapatalk

 

[Burla]

This is a great example why this is important, and an good example on how you take good care of your equipment. And why we always preach to get a uoa, people that blindly say yeah go 10k miles no problem are just wrong. And fyi, I have seen redline out of tbn at 9k miles before, and in my truck it had over 3 tbn at 10k miles, so it just depends on someone's vehicle. Every truck is different.

I'm gonna post that up in syn thread.

 

[chrisbh17]

I think if we take some of our scientific ideas/theories/guesses together, we come up with:

shortage of lubrication to the back (firewall side of engine) of the cam/lifters
too thin recommended oil from factory
oil thins out as you put more miles on it

Add all of those up and now we have a case for: thicker oil with a higher film strength that shears down the least and a tendency towards a shorter OCI than we expect the oil can handle

5-20 is a bad start to begin with, granted it wont shear down (where would it go, a 10? lol) but even the brand-new-oil viscosity might be too low. Some 30 weights shear down to very low 30 weight or even a high 20 weight...maybe a bit better, but still probably not ideal. That leaves 30 weights that either dont shear at all, or very little, or 30 weights that start "heavy" and even after shearing are still in the mid-range of 30 weight rating.

And on top of all of that, do not run overly extended OCIs. Luckily in my case I never get to a lot of miles in an OCI, I change out after 6 months and maybe have 4K miles on the oil. Could I go longer? Of course, but Id still need to change the oil again in the year anyway, so I might as well change early rather than late.

 

[Burla]

Thanks Burla.
That's exactly what I'm gonna do.

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

Another thing I would find value in is tbn and tan. I rarely recommend tan, but in this case you may want to have that info. Something made this oil go south in a hurry, maybe fuel I dunno?

It definitely isn't the oil, but how it's running.

 

[SETEX 6.4]

Another thing I would find value in is tbn and tan. I rarely recommend tan, but in this case you may want to have that info. Something made this oil go south in a hurry, maybe fuel I dunno?

It definitely isn't the oil, but how it's running.

Ok ok so what is tbn and tan?

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

 

[R.L.K.]

Ok ok so what is tbn and tan?

2014 Ram 2500 Mega Cab 6.4 Hemi 4:10 Gears Ram Boxes 35x12.50R18 on Factory Wheels
Sent from my SAMSUNG-SM-G891A using Tapatalk

TBN = Total Base Number
TAN = Total Acid Number

Sent from my SM-G930V using Tapatalk