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Oil Quality and Change Interval

oil TBN viscosity

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78 replies to this topic

#21 OFFLINE   ptjones

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Posted 10 October 2015 - 05:32 PM

It has been at least 12k mi. , 6k mi. ICE since I changed the oil and it looks like I haven't used  any oil. Used Mobil 1 0W-20, 105K mi. on the car and 55K on the ICE. :)

 

Paul

Updating I have 15K miles on this Oil Change, so about 7,500 miles on the ICE and the Oil Level still seems to be in the middle of dip stick. :)

 

Paul









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#22 OFFLINE   fbov

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Posted 11 October 2015 - 06:28 PM

Pull a sample!



#23 OFFLINE   ptjones

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Posted 11 October 2015 - 07:08 PM

Pull a sample!

Ordered a Kit. :)

 

Paul



#24 OFFLINE   ptjones

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Posted 02 November 2015 - 05:29 PM

Got a Blackstone Lab. Oil Sample Kit.  I have 19.6K mi. since oil change with 8.4K  ICE mi. , took about an half an hour to write down the EV miles for 30 fillups and then add them up and subtract from total mileage to get ICE mileage.  57% EV and 43% ICE not to shabby. :)  Will be changing by 10K ICE mi. and sending in my oil sample.  :)  I haven't been using any oil. :2thumbs:  :shift:

 

Paul



#25 OFFLINE   fbov

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Posted 03 November 2015 - 11:46 AM

... took about an half an hour to write down ....

You did a spreadsheet, right?

 

Interesting that you're going by ICE miles, not vehicle miles. My changes become:

10,434 unknown EV (prior owner) but high fraction ICE

9,663  3,767EV so 5,896 ICE miles

10,386, 6,192EV so 4,194 ICE miles

 

My key wear-out indicator is TBN, and my oil is close enough to 1.0 that I'm happy with a 10K change interval. What I'm curious about are fuel in the oil, and wear products like Al, Fe and Mb, which all follow a similar high-low-high pattern. Hybrids have a unique run/stop pattern; does it show up in the oil?

 

Fuel could just be from sampling a cold engine (I'll sample warm oil next time), but it's also a characteristic of cold starts. My first oil change was a January change, but the next two are August. There's no environmental effect between the last two, but a big flashpoint and %fuel effect. Need more data.

 

Wear items should all show a declining trend as the engine breaks in. Three ticked up (Al, Fe, Mb), while others continued their decline (Cu, Si). No concerns, just potential trends waiting on an error estimate to become either signal or noise.  

 

So, quit talking and post some oil results!!

 

HAve fun,

Frank



#26 OFFLINE   ptjones

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Posted 03 November 2015 - 07:08 PM

You did a spreadsheet, right?

 

Interesting that you're going by ICE miles, not vehicle miles. My changes become:

10,434 unknown EV (prior owner) but high fraction ICE

9,663  3,767EV so 5,896 ICE miles

10,386, 6,192EV so 4,194 ICE miles

 

My key wear-out indicator is TBN, and my oil is close enough to 1.0 that I'm happy with a 10K change interval. What I'm curious about are fuel in the oil, and wear products like Al, Fe and Mb, which all follow a similar high-low-high pattern. Hybrids have a unique run/stop pattern; does it show up in the oil?

 

Fuel could just be from sampling a cold engine (I'll sample warm oil next time), but it's also a characteristic of cold starts. My first oil change was a January change, but the next two are August. There's no environmental effect between the last two, but a big flashpoint and %fuel effect. Need more data.

 

Wear items should all show a declining trend as the engine breaks in. Three ticked up (Al, Fe, Mb), while others continued their decline (Cu, Si). No concerns, just potential trends waiting on an error estimate to become either signal or noise.  

 

So, quit talking and post some oil results!!

 

HAve fun,

Frank

Patience, this isn't a race. LOL  Here is my spread sheet. LOL :)  I want to go 10K ICE miles. :shift:

Oilchangemileage


#27 OFFLINE   fbov

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Posted 04 November 2015 - 11:56 AM

Attached File  Sample data sheet sm.jpg   152.79KB   0 downloads

Here's how mine starts, too. We're just two old guys with pencils, at heart...

 

Being somewhat dyslexic, I use spreadsheets as a survival tactic. I got tired of checking my answers and getting a different result every time. Spreadsheet allow me to enter once, calculate twice if the answer looks off.

 

HAve fun,

Frank


Edited by fbov, 04 November 2015 - 12:01 PM.


#28 OFFLINE   stevedebi

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Posted 04 November 2015 - 12:05 PM

attachicon.gifSample data sheet sm.jpg

Here's how mine starts, too. We're just two old guys with pencils, at heart...

 

Being somewhat dyslexic, I use spreadsheets as a survival tactic. I got tired of checking my answers and getting a different result every time. Spreadsheet allow me to enter once, calculate twice if the answer looks off.

 

HAve fun,

Frank

I keep track of my mileages and etc on a spreadsheet - on my phone. The sheet is on a cloud drive, so I can easily check it from my computer, and yet still fill in data on my phone.



#29 OFFLINE   BIG ROCCO

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Posted 04 November 2015 - 02:25 PM

I like the pencil and paper versions


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#30 OFFLINE   ptjones

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Posted 04 November 2015 - 04:33 PM

I keep track of my mileages and etc on a spreadsheet - on my phone. The sheet is on a cloud drive, so I can easily check it from my computer, and yet still fill in data on my phone.

I just take a iPhone pic trip display every time I fill up. Then I can put in actual calculated GPS miles and actual fill up gallons in Fuelly later.  I think I have 186 fill ups on my iPhone.  :)

 

Paul



#31 OFFLINE   fbov

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Posted 05 November 2015 - 10:25 AM

I like the pencil and paper versions

Yep; the car has a log book with the important stuff, while the trip data goes in a pile on my desk.

 

Hard to beat marks on paper...

 

Frank



#32 OFFLINE   stevedebi

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Posted 05 November 2015 - 12:05 PM

Yep; the car has a log book with the important stuff, while the trip data goes in a pile on my desk.

 

Hard to beat marks on paper...

 

Frank

Not for me - my data is everywhere I want it to be, all the time, and I don't need to worry about keeping track of a physical log book - or finding the pencil when needed. Plus, I can do analysis on the data using spreadsheets (which I do, calculating MPGe and stuff like that automatically).

 

But I accept that many folks prefer the pencil. I had a log back when I started driving as well.


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#33 OFFLINE   BIG ROCCO

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Posted 05 November 2015 - 01:11 PM

Not for me - my data is everywhere I want it to be, all the time, and I don't need to worry about keeping track of a physical log book - or finding the pencil when needed. Plus, I can do analysis on the data using spreadsheets (which I do, calculating MPGe and stuff like that automatically).

 

But I accept that many folks prefer the pencil. I had a log back when I started driving as well.

 

 

I bet the same people who prefer pencil and paper also prefer magazines printed in paper - the rest might prefer e-zines or viewing content on a website...there is no correct answer - just a matter of personal preference.


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#34 OFFLINE   fbov

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Posted 06 November 2015 - 11:21 AM

Not for me - my data is everywhere I want it to be, ...

Until it's not.

 

We know the longevity of a log book. See me in 10 years about "data everywhere."

 

Frank



#35 OFFLINE   stevedebi

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Posted 06 November 2015 - 01:06 PM

Until it's not.

 

We know the longevity of a log book. See me in 10 years about "data everywhere."

 

Frank

The data is also stored on my phone and computer, regardless of what happens to the cloud. In 10 years, I doubt I'll particularly care about the mileage and other details of my 2014 C-Max Energi, or my 2014 VW Passat TDI. Well, the TDI may still be in my stable, but probably not the C-Max.



#36 OFFLINE   stevedebi

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Posted 06 November 2015 - 01:06 PM

I bet the same people who prefer pencil and paper also prefer magazines printed in paper - the rest might prefer e-zines or viewing content on a website...there is no correct answer - just a matter of personal preference.

Oddly enough, for books and magazines, I still prefer hard copy.


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#37 OFFLINE   ptjones

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Posted 15 November 2015 - 01:56 PM

Just did another 700 mi. tank fillup, but only 235  ICE miles for a total of 8663 ICE mi. on this oil change.  At this rate I'll need to 5 more fillups and about 3500 mi. more before I will have 10K ICE miles. So total miles should be 23.5K miles. WOW! :shift:  :)

 

Paul

P.S. My Life Time EV% is close to 50%, maybe by the time I change my Oil and Filter.



#38 OFFLINE   stevedebi

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Posted 16 November 2015 - 12:20 PM

Just did another 700 mi. tank fillup, but only 235  ICE miles for a total of 8663 ICE mi. on this oil change.  At this rate I'll need to 5 more fillups and about 3500 mi. more before I will have 10K ICE miles. So total miles should be 23.5K miles. WOW! :shift:  :)

 

Paul

P.S. My Life Time EV% is close to 50%, maybe by the time I change my Oil and Filter.

But your Ford built in oil change alert will go on before 23.5, right? Or did you reset it?



#39 OFFLINE   fbov

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Posted 16 November 2015 - 12:37 PM

AFAIK, the oil change alert is miles-only. Every 10K miles, regardless of EV%... at least I didn't see a difference in interval, comparing a period of highway driving (low EV%) and back roads driving (high EV%).

 

Paul may be doing the oil life experiment... I don't like my oil results after 10K total miles enough to extend change intervals yet, so I'm very interested in what's different after 25K.

 

Frank



#40 OFFLINE   ptjones

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Posted 16 November 2015 - 12:53 PM

But your Ford built in oil change alert will go on before 23.5, right? Or did you reset it?

I think it came on at 10K mi. and I turned it off. It should be coming on again soon that I'm approaching 20K mi.  Mobil 1's TV ADD's say upto 15K miles on an Oil Change so 10K isn't pushing the envelope much.  I already have 112K mi. Total /56K ICE miles with no Oil usage.  :)

 

Paul


Edited by ptjones, 16 November 2015 - 01:05 PM.







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