2018 Ram 1500 5.7, Castrol Edge 5W-40 Euro A3/B4 API SP - 9729 Miles

Plum Bob

Plum Bob

Joined
May 19, 2024
Messages
48
Location
Space Coast
Hello,

New member from Titusville, FL. My Oil Analyzers UOA came back today, and I'm pleased the results suggest a healthy engine. Fuel dilution is non-existent, no abnormal wear metals values and the viscosity stayed in grade, albeit a small drop - no surprises here from a stout Euro add-pack. The manganese was flagged at 23 and my educated guess is that it comes from Stabil360, but I may be wrong. I store a few 5G jugs of gas for hurricane season, then use them up right before the start of the next season. That was 2-3 weeks before I took the sample. I use no other gas additives. TBN's aplenty for a longer drain. I will stretch the current one to 15-16K; this truck lives on the highway.



Iron / 28
Chromium / 1
Nickel / 1
Aluminum / 2
Copper / 16
Lead / 0
Tin / 0
Cadmium / 0
Silver / 0
Vanadium / 0
Silicon / 8
Sodium / 6
Potasium / 0
Titanium / 0
Molybdenum / 83
Antimony / 0
Manganese / 23
Lithium / 1
Boron / 63
Magnesium / 1061
Calcium / 1485
Barium / 0
Phosphorus / 953
Zinc / 1105
Lube Time / 9729
Unit Time / 127526
Lube Changed / Yes
Lube Added / 1.5 qt
Filter Changed / Yes
Fuel Dilution / <1 - Estimate
Soot / <.1 FTIR
Water / <.1 FTIR
Viscosity 100 °C / 12.9
Base No. D4739 / 5.68
Oxidation / 19
Nitration / 17
 
I wouldn't push it past 12k miles until you get another report that indicates you have more room to go. Your oxidation is baseline+12 right now. Oil Analyzers starts to flag this value at baseline+17. Increasing mileage by 50% (10k to 15k) could push your oxidation value past that +17 point. TBN should hold to 15k, but is considered by many to be less important than oxidation anymore.

Do you know that Manganese is in Stabil360?
 
Editing out, I very clearly did not fully read.


Anyways, good to see another longer OCI report from a 5.7 that lives on the highway like mine. I'm still using 5w30, interesting to see xw40 reports. I do think the viscosity is interesting, especially considering the make up oil. Seems a little low to me for a xw40. Maybe a good bit of shearing?
 
Last edited:
himemsys said:
I wouldn't push it past 12k miles until you get another report that indicates you have more room to go. Your oxidation is baseline+12 right now. Oil Analyzers starts to flag this value at baseline+17. Increasing mileage by 50% (10k to 15k) could push your oxidation value past that +17 point. TBN should hold to 15k, but is considered by many to be less important than oxidation anymore.

Do you know that Manganese is in Stabil360?
Click to expand...
This^^^^^^^. 10,000 seems far enough. Save your OA money.
 
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racer12306 said:
Editing out, I very clearly did not fully read.


Anyways, good to see another longer OCI report from a 5.7 that lives on the highway like mine. I'm still using 5w30, interesting to see xw40 reports. I do think the viscosity is interesting, especially considering the make up oil. Seems a little low to me for a xw40. Maybe a good bit of shearing?
Click to expand...
There are several reports on here recently that put Mobil Euro at <10 for viscosity after 6k miles. This one at 12.9 is great IMO. It all shears but this run/in this truck did good. I will say I think the Euro I speak about was a 0w-40 & not a 5w.

Plum Bob said:
Hello,

New member from Titusville, FL. My Oil Analyzers UOA came back today, and I'm pleased the results suggest a healthy engine. Fuel dilution is non-existent, no abnormal wear metals values and the viscosity stayed in grade, albeit a small drop - no surprises here from a stout Euro add-pack. The manganese was flagged at 23 and my educated guess is that it comes from Stabil360, but I may be wrong. I store a few 5G jugs of gas for hurricane season, then use them up right before the start of the next season. That was 2-3 weeks before I took the sample. I use no other gas additives. TBN's aplenty for a longer drain. I will stretch the current one to 15-16K; this truck lives on the highway.



Iron / 28
Chromium / 1
Nickel / 1
Aluminum / 2
Copper / 16
Lead / 0
Tin / 0
Cadmium / 0
Silver / 0
Vanadium / 0
Silicon / 8
Sodium / 6
Potasium / 0
Titanium / 0
Molybdenum / 83
Antimony / 0
Manganese / 23
Lithium / 1
Boron / 63
Magnesium / 1061
Calcium / 1485
Barium / 0
Phosphorus / 953
Zinc / 1105
Lube Time / 9729
Unit Time / 127526
Lube Changed / Yes
Lube Added / 1.5 qt
Filter Changed / Yes
Fuel Dilution / <1 - Estimate
Soot / <.1 FTIR
Water / <.1 FTIR
Viscosity 100 °C / 12.9
Base No. D4739 / 5.68
Oxidation / 19
Nitration / 17
Click to expand...
Great run & I think 12k or so could be the sweet spot but try it & see what the results are at 15k. Maybe it'll work out. I think it will since you've added 1.5 qts of oil so you're replenishing with new oil.
 
himemsys said:
I wouldn't push it past 12k miles until you get another report that indicates you have more room to go. Your oxidation is baseline+12 right now. Oil Analyzers starts to flag this value at baseline+17. Increasing mileage by 50% (10k to 15k) could push your oxidation value past that +17 point. TBN should hold to 15k, but is considered by many to be less important than oxidation anymore.

Do you know that Manganese is in Stabil360?
Click to expand...
Don't know, but some gas boosters do. Also, you made a good point about the 12K OCI. Thanks
 
fantastic said:
There are several reports on here recently that put Mobil Euro at <10 for viscosity after 6k miles. This one at 12.9 is great IMO. It all shears but this run/in this truck did good. I will say I think the Euro I speak about was a 0w-40 & not a 5w.
Click to expand...
12.9 is not a significant drop vs. published 13.4, but as @racer12306 pointed out, it is interesting that dropped that much after the 1.5 qt added.
 
racer12306 said:
Editing out, I very clearly did not fully read.


Anyways, good to see another longer OCI report from a 5.7 that lives on the highway like mine. I'm still using 5w30, interesting to see xw40 reports. I do think the viscosity is interesting, especially considering the make up oil. Seems a little low to me for a xw40. Maybe a good bit of shearing?
Click to expand...
For a 10k oil change, 12.9 is actually very good. I believe it starts out at 13.7.
 
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