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Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: OVERKILL] #4742688 04/29/18 06:53 PM
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DuckRyder Offline OP
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Originally Posted By: OVERKILL
Originally Posted By: DuckRyder
Sounds like we are at least thinking along the same lines.

According to my reading of some of the machinery lubrication articles it appears viscosity and PH (which almost no one measures that I am aware of) are two factors.


Yeah, oxidation is one criteria that'll start to run away once the oil is "used up", however generally one wants to avoid that scenario, which is why TBN/TAN relationship has historically been of value and at least on of the main criteria to determine OCI length. One would question, and I'm sure it isn't, but if it was, as easy as just subtracting the starting TAN (if known) from the measured TAN to get a "true" TAN reading? LOL! LOL


No kidding, if only it was that simple.

If I hear back from Mobil or Blackstone I will summarize the replies for us.

RE the particle counts, I was more interested in the change in the PCs than the actual counts, IE: does it get better as time goes on, or worse and is the relatively inefficient factory filter significantly different from the Ultra.

I suppose once I figure out what the deal with the TAN is, I also have to decide if I will continue to do these UOAs. Frankly Im only doing it to add to the knowledge pool, but it is economically foolish. For instance if I do 3 on this sump and the price of both the analysis and AP remains constant I will have spent enough to change the oil six times with AP and my choice of filter, another 20,000 mile sump and that is a 12 oil changes with AP... It really doesnt make good sense.


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: edyvw] #4743121 04/30/18 08:54 AM
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Originally Posted By: edyvw
Originally Posted By: dgunay
I wouldn't extend it, TAN is already higher than TBN.

Esters? M1 5W30 ESP that I tried in VW CC and Tiguan also showed high TAN.


Mobil1 5w-30 esp have a pretty low TBN too

Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4743705 04/30/18 06:29 PM
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Originally Posted By: DuckRyder
RE the particle counts, I was more interested in the change in the PCs than the actual counts, IE: does it get better as time goes on, or worse and is the relatively inefficient factory filter significantly different from the Ultra.


My 5k-mile PC was significantly better than the PC on the new fluid. I'm curious to see what you get for results.


I use speech recognition frequently. Please excuse any consequent grammatical or typographical errors.
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: bulwnkl] #4743720 04/30/18 06:40 PM
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DuckRyder Offline OP
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Originally Posted By: bulwnkl
Originally Posted By: DuckRyder
RE the particle counts, I was more interested in the change in the PCs than the actual counts, IE: does it get better as time goes on, or worse and is the relatively inefficient factory filter significantly different from the Ultra.


My 5k-mile PC was significantly better than the PC on the new fluid. I'm curious to see what you get for results.


It will be interesting.

I heard back from Blackstone who said, in essence, that there is not a great body of experience for TAN on engine oil and that it is much more common on hydraulic fluid and transmission oil. (which I knew and is borne out by the UOAs here) They went on to say in light of the other readings (viscosity was mentioned) dont worry about it. (That agrees with much of the Machinery Lubrication content and what OilFilmMovies is saying.)

I heard from Mobil and they asked for the UOA which I sent. (I was actually sort of impressed with the quickness of the reply)

I think for now I will continue with the plan to resample at 15,000 unless Mobil raises an alarm about the TAN.


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4743904 04/30/18 08:57 PM
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Originally Posted By: DuckRyder
I heard from Mobil and they asked for the UOA which I sent. (I was actually sort of impressed with the quickness of the reply)



I'd ask them back to send you some swag since they want for free the data about their product that you paid for. Can't hurt to ask, and if you never ask, they will likely never offer smile

Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4744113 05/01/18 05:07 AM
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DuckRyder Offline OP
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Yeah some Mobil 1 swag would be nice, or free UOAs....


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4750319 05/07/18 04:43 PM
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DuckRyder Offline OP
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I checked in with Mobil and the CS rep confirmed the UOAs and link to this tread came through but said Technical was still reviewing it.

Car is still running the oil of course. grin


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4762366 05/19/18 08:13 PM
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So, Mobil says it is ok to continue running.

My questions have apparently tread into proprietary areas so the departments are discussing whether they can say more.


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4821529 07/23/18 04:49 PM
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DuckRyder Offline OP
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Well now.

I will post up the reports when ALS comes in, but @ about 10,500 the TAN is now 4.9 and the TBN 2.6...

Still no word back from Mobil (disappointing) one the ALS report comes in Ill send them a reminder.


Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
Re: Mobil 1 0W/20 AP, 7634 Miles, 2005 Civic 1.7 w PC [Re: DuckRyder] #4822605 07/25/18 07:50 AM
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Robert
  • 2019 Volkswagen Jetta R-Line
  • 2005 Honda Civic Sedan
  • 1972 F100 Ranger XLT (390/C6/9” 3.50 Truetrac)
  • 2002 Ford Ranger XLT 4D Supercab 3.0L
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