Synthetic motor oil

Replying to: pulgo (Nov 02, 2007 10:30 am)

Using PULGO's example, one can adjust none to ALL of the variables!! This of course is where one starts to wonder what changes are changing and what changes are or have been kept the same. What practical differences are there?
 
Another example is the change from LSD (up to 500 ppm) to ULSD (15 ppm on down) The TBN, (12 in the case of Delvac One 5w40 aka Mobil One Truck & SUV 5w40), not 6 mo ago was a VERY important measure: while still important, another important metric was, still is the SOOT LOADING 1.5-3% upper level); to the TBN. So if you got soot loading (for any number of reasons) it was important to have a good (reserve) TBN to neutralize acid production due to soot loading. Since soot loading is/was caused primary by higher sulfur PPM, what does one think happens to the soot loading metric when soot is now structurally 97% LESS?? !!! Again a reason why TBN (using ULSD) lasts/stays higher so much longer!
 
So for example a high quality oil (Delvac One 5w40, aka Mobil One Truck and SUV 5w40) was almost total overkill for a 10,000 mile OCI, was a lock for a 20,000 mile OCI with LSD. Now with 97% less sulfur ppm, a 25,000 mile OCI is a belt and suspenders kind of interval!! This is without bypass oil filtration!! If one adds bypass oil filtration:? CLEAN CLEAN CLEAN, longer longer longer.
 
Can I go to 500,000 to 1,000,000 miles? Those are my goals, and time will tell. Can it go to 500,000 miles to 1,000,000 miles with bypass oil filters? That would also be the goal and time will tell, also. What I do know for sure: if I keep the OCI's the same (25,000 miles), the oil with the bypass oil filtration will indeed be cleaner. Do I think it makes a difference? Absolutely!! Do I think it is statistically significant? Probably. Has it been positively correlated?.... NO! Does either scenario make longer term economic sense? I hope so. I know logically, but truly, I do not really know practially. All we can reasonably expect to do is given the goal, stack the odds in ones' favor!?

Replying to: ruking1 (Nov 02, 2007 8:54 am)

Replying to: ruking1 (Oct 31, 2007 7:21 am)

Replies to this message:
• ruking1 (Nov 02, 2007 2:03 pm)
  • robert1955 (Nov 02, 2007 2:54 pm)
    • ruking1 (Nov 02, 2007 3:36 pm)

Replying to: robert1955 (Nov 02, 2007 12:27 pm)

Replies to this message:
• robert1955 (Nov 02, 2007 2:54 pm)
  • ruking1 (Nov 02, 2007 3:36 pm)

Replying to: ruking1 (Nov 02, 2007 2:03 pm)

Replies to this message:
• ruking1 (Nov 02, 2007 3:36 pm)

Replying to: pulgo (Nov 02, 2007 10:30 am)

Replying to: robert1955 (Nov 02, 2007 2:54 pm)

Replying to: shipo (Oct 20, 2007 1:06 pm)

Replies to this message:
• shipo (Nov 02, 2007 4:35 pm)

Replying to: richardson (Nov 02, 2007 4:22 pm)

"How will you use a Pella if the trend to omit the dipstick really takes hold?"
 
Ummm, I won't.
 
"Are you still moving to Hong Kong?"
 
Nope, it looks like the move is off as my Mrs. Shipo's company is being sold. (again). We did manage to get a trip over there for the whole family that was paid for by the company, and it was quite an eye opener for the kids. Last May when we first broke the news to the kids that we were moving to HK, my 13 year old son (who is already quite the ladies man) said to me, "Ahhh Dad, why do we have to move? You know I don't dig Asian chicks."
 
Fast forward to late August when we were exploring the island as well as Kowloon, I repeatedly caught him walking into things with a wide eyed look on his face while gazing at the local young ladies. Finally he admitted, "Dad, uhhh, I think some of these asian girls are pretty hot."
 
Best Regards,
Shipo

Replies to this message:
• smokey75 (Nov 13, 2007 8:07 am)
  • ruking1 (Nov 13, 2007 8:26 am)
    • smokey75 (Nov 13, 2007 9:10 am) and 3 more...
    • robert1955 (Dec 21, 2007 10:41 am) and 7 more...