special factory fill additives?

[MatchboxCar]

Here's a writeup I did on my first Oil Change in my Honda Element and my UOA... Bottom line? Nothing special in the oil except a bit of Moly.

Results from My First Oil Change

 

[AndyH]

quote:

---

Originally posted by Ray H:
(On a sidenote - I'd love to know where the author of your quote got his information that the Passport's engine didn't deserve equal treatment at the factory and/or during run-in...)

---

Perhaps because the Passport was really just a rebadged Isuzu Rodeo (IIRC), and didn't have a Honda-made engine...just a guess.

 

[427Z06]

quote:

---

Originally posted by MatchboxCar:
Here's a writeup I did on my first Oil Change in my Honda Element and my UOA... Bottom line? Nothing special in the oil except a bit of Moly.

---

+300 ppm Moly is the exception not the rule. Your analysis is flawed in several ways, IMHO.

 

[427Z06]

quote:

---

Originally posted by AndyH:

quote:

---

Originally posted by Ray H:
(On a sidenote - I'd love to know where the author of your quote got his information that the Passport's engine didn't deserve equal treatment at the factory and/or during run-in...)

---

Perhaps because the Passport was really just a rebadged Isuzu Rodeo (IIRC), and didn't have a Honda-made engine...just a guess.

---

Spot on!

 

[Volvohead]

quote:

---

Originally posted by Ray H:
Answer: A definite maybe. Honda, like other engine builders, slathers on a thick assembly lube during build to protect the various sliding parts at first startup until oil pressure can build. Once running with pressure, the engine oil will wash this stuff into solution - in effect relegating it to "additive" status. If Honda's preferred assembly lube is dosed high with molybdenum, that would account for the almost obscenely high amounts of moly we see in UOAs of Honda factory-fill oil.
. . .

---

I think Ray is likely right here. Honda appears to ship the engines out the door with the foundry fill still in them. And I suspect VAG does the same thing, which explains their similar instruction to leave the factory brew in until the first warranty interval. These oils should be heavily spiked with moly from the assembly lubes if that is the case.

It's not my favorite way to deal with a new engine, as there is always some final machining and initial break in contamination, and you hope the filter will capture it all. But it seems to work for them, and Honda in particular.

 

[sky jumper]

found elsewhere:

quote:

---

"On all Hondas (except Passport), the original engine oil contains additives to protect the engine during its break-in period. Since these additives aren't in over-the-counter oils, make sure the first oil change happens at the recommended mileage/time interval, and not before."

---

T or F?

 

[Ray H]

Answer: A definite maybe. Honda, like other engine builders, slathers on a thick assembly lube during build to protect the various sliding parts at first startup until oil pressure can build. Once running with pressure, the engine oil will wash this stuff into solution - in effect relegating it to "additive" status. If Honda's preferred assembly lube is dosed high with molybdenum, that would account for the almost obscenely high amounts of moly we see in UOAs of Honda factory-fill oil.

(On a sidenote - I'd love to know where the author of your quote got his information that the Passport's engine didn't deserve equal treatment at the factory and/or during run-in...)

 

[Blue99]

Here's a Honda factory fill report from the UOA forum:

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=003273#000000

With the exception of moly & boron levels similar to GF-4/SM Havoline, nothing sticks out in this UOA.

And as many have commented, the moly could be residual left-over from assembly lube.

If anything is special about the Honda factory fill, it has to be something such as an organic friction modifier that does not show up in metallic UOA analysis.

Note that Nippon oil supplies the Honda factory fill and it is blended to the Nippon formulation spec's by a US lubricant blender.