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2013 Audi Q5 2.0T used oil analysis results

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Old 06-26-2014, 02:23 PM   #1
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Default 2013 Audi Q5 2.0T used oil analysis results

Here are the results from my recent used oil analysis done by Blackstone Lab. This is only my 3rd oil change. First was done by dealership at the first 5k miles, next was 15k miles by me using Mobil 1 0W-40 synthetic, and same Mobil 1 oil at 25k miles. Oil filter is Audi OEM.

Majority of my mileage are highway miles, averaging 75 mph, 25 mpg.

I'll do another analysis at the next 10k mi.
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File Type: pdf 2013 Audi Q5 2.0T oil analysis.pdf (1.10 MB, 98 views)

Last edited by vutekho; 07-07-2014 at 03:47 PM. Reason: pdf wasn't clear
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Old 06-26-2014, 06:08 PM   #2
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Can't seem to read it...
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Old 07-06-2014, 07:27 PM   #3
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Can't seem to read it...
It should work now.
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Old 07-06-2014, 07:43 PM   #4
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What does TBN stand for? Why have the oil change at 5k miles? Was there any special reason for it? I've heard that apparently doing an oil change at the first 5k miles really improves engine life. However Audi engines are already run in
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Old 07-06-2014, 08:22 PM   #5
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The TBN is the amount of additives left in the oil. Once they are consumed, acids and other harmful products build up and engine damage is being done, so a "higher" TBN number is good. As long as it is above zero, the oil is still fighting acids, etc.

Only the paranoid change oil at 5000 miles these days, or folks using cheap oil. Except, the first "break in" change which always used to be done at 1000 miles. With an engine that is already broken in to some extent, and better manufacturing which leaves fewer shavings and less polishing in to be done, Audi has gone to 5k miles for the break-in oil change. In theory, any manufacturing crap will come out and no damage will have been done. In practice...I'm not sure I'd want to wait 5000 miles or 12 months for the first inspection of the engine, which is what that really is, if you're sending out for analysis.
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Old 07-06-2014, 08:32 PM   #6
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Ah thanks for the quick response and clarification. Good to know. My first inspection service is 2 years on the Diesel engine for Audi. I've done just under 4k miles in 15 months so should be ok for a 5k miles oil change.

By the way , you may want to consider removing your personal address and telephone number from that PDF you posted.
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Old 07-07-2014, 01:09 AM   #7
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By the way , you may want to consider removing your personal address and telephone number from that PDF you posted.

Hmmm....I thought it was removed. I'll repost the pdf file again once I get to a computer.

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Old 07-07-2014, 02:03 AM   #8
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FWIW, all "PDF" software isn't equal. And Adobe's own products sometimes are flawed. I've seen highlighting and blocking (i.e. drawing a white box over something to hide it) disappear when a file is rendered in another program or version.

If I were paranoid I'd say that to make sure something was "removed", you'd need to delete the characters in a full-blown editor after doing an OCR conversion on the file. Or, physically print it out, block them out, and scan it back in again.

Or perhaps...that's just computer security experience, not paranoia.(G)
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Old 07-07-2014, 03:48 PM   #9
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FWIW, all "PDF" software isn't equal. And Adobe's own products sometimes are flawed. I've seen highlighting and blocking (i.e. drawing a white box over something to hide it) disappear when a file is rendered in another program or version.

If I were paranoid I'd say that to make sure something was "removed", you'd need to delete the characters in a full-blown editor after doing an OCR conversion on the file. Or, physically print it out, block them out, and scan it back in again.

Or perhaps...that's just computer security experience, not paranoia.(G)
I just printed it out and scanned it. Old fashioned way always works!
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Old 07-07-2014, 04:00 PM   #10
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What does TBN stand for? Why have the oil change at 5k miles? Was there any special reason for it? I've heard that apparently doing an oil change at the first 5k miles really improves engine life. However Audi engines are already run in
The first 5k mile was a free standard maintenance covered by Audi, then every 10k mile as per owners manual.

I used to change the oil in my 98 Acura Integra (sold at 128k miles) and my 2003 IS300 (sold at 165K miles) using the same 10k mile interval and Mobil 1, and never had any issues. I also sent my used oil for these vehicles in to Blackstone for an analysis, every 30k miles, and they actually recommend I extend my change interval to 12k miles because the oil was still in good shape, but I wanted to have some buffer room.

Besides tearing the motor down and measure all the moving parts, a UOA is the most efficient way to determine the condition of our motor and oil. I prefer not to guess or throw away money needlessly.

Hope this is useful information to some.
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Old 06-19-2015, 09:01 PM   #11
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Default 45k miles UOA

After my 25k miles oil change, I decided to used the Castrol Edge 0W/40 European Formula that is made in Germany, at my 35k miles oil change interval. This is the one that can be found at Walmart, not the green oil at Autozone. From previous research on the web, I think it's safe to say that in Europe, they have a higher criteria for calling anything synthetic oil. I'm not going to go into details about this, but it is stated that they used a higher base grade oil to make synthetic oil, than in the US.

Everything in the car remains the same, including my driving style. My job requires me to do a lot of highway travels, so I put 20k miles on my car in almost exactly a year from the last analysis, which just happens to be about same time last year. I probably won't be doing another one till maybe 75k miles.

Note: in the comment section, they stated that I used this same oil in my previous sample. That is not correct. It was Mobil 1 0W40, as you can see from my first UOA. Also, here is a link to explain what the elements found in the oil means: Blackstone Labs


I hope this helps the less informed, cause I see a lot of people throwing away time and money, on shorter oil change intervals. Just because you drive a turbocharged car, doesn't make you special.
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Old 06-20-2015, 05:11 AM   #12
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Thanks for posting this. Looks like metals are trending down, which is a good thing. The high metals you saw earlier were probably a result of the engine still breaking in. Both M1 0w-40 and Castrol 0w-40 are great oils.


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I hope this helps the less informed, cause I see a lot of people throwing away time and money, on shorter oil change intervals. Just because you drive a turbocharged car, doesn't make you special.
It really depends on your driving patterns. You mentioned you accumulate miles fast and it's mainly hwy miles, which is very easy on the engine and oil, hence 10K OCI is perfectly doable. But if you were to accumulate that 10K miles with mainly stop-and-go driving and/or short tripping and it would take you 2 years to reach it, that report would look a whole lot different. That is why Audi also specifies a time limit on oil changes, and based on my own personal experience (and UOAs), they are correct to do so.
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Old 06-20-2015, 02:47 PM   #13
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Moly (which is in Mobil1) and boron are way down, while titanium is way up.

I could see moly and boron being down because M1 uses them as addiditives and the Catorl doesn't, but titanium? Does Castrol use that as an additive?

Curious that Blackstone didn't comment on any of that.

The calcium change...also curious. Environmental or additive perhaps?
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Old 06-20-2015, 05:42 PM   #14
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Does Castrol use that as an additive?
Yes, Castrol uses titanium as an additive.
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Old 06-20-2015, 06:04 PM   #15
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Moly (which is in Mobil1) and boron are way down, while titanium is way up.

I could see moly and boron being down because M1 uses them as addiditives and the Catorl doesn't, but titanium? Does Castrol use that as an additive?

Curious that Blackstone didn't comment on any of that.

The calcium change...also curious. Environmental or additive perhaps?
There were no additives added. Most of my driving is between Houston and New Orleans. So there are plenty of humidity.

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Old 06-20-2015, 06:35 PM   #16
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Default My Q5 UOA

I've attached my up-to-date UOA records. I started out with Castrol 5W40 for the first three oil changes, but discovered that the engine oil level was decreasing over 5K miles. I switched to Mobil 1 0W-40 at the 10K oil change, and the oil level has not dropped. This vehicle gets mostly short-distance driving and less freeway driving (my wife's car).

I've noted that the oil viscosity drops below the limit range in 5K of driving on either Castrol or Mobil 1, which concerns me. I've not seen that happen in other vehicles using Mobil 1. I just changed the oil today, and I'll have the dealership change the oil at 25K with Mobil 1. If it weren't for the viscosity drop, I'd run Mobil 1 the full 10K between changes.
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Old 06-20-2015, 07:16 PM   #17
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I've attached my up-to-date UOA records. I started out with Castrol 5W40 for the first three oil changes, but discovered that the engine oil level was decreasing over 5K miles. I switched to Mobil 1 0W-40 at the 10K oil change, and the oil level has not dropped. This vehicle gets mostly short-distance driving and less freeway driving (my wife's car).

I've noted that the oil viscosity drops below the limit range in 5K of driving on either Castrol or Mobil 1, which concerns me. I've not seen that happen in other vehicles using Mobil 1. I just changed the oil today, and I'll have the dealership change the oil at 25K with Mobil 1. If it weren't for the viscosity drop, I'd run Mobil 1 the full 10K between changes.

If I remember correctly, the owner's manual did state that the engine will consume more oil then usual due to the piston rings not fully seating. I don't have it in front of me, but that goes true for pretty much all new engines.

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Old 06-20-2015, 08:07 PM   #18
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"There were no additives added." They are ALWAYS added during the manufacturing by the manufacturer. It has got nothing to do with whether you add anything. Anything beyond the "base stock" that they have processed with heat and pressure, is an additive. And they're a critical trade secret in many cases.

Pete-
HTF does titanium, an incredibly hard (and presumably abrasive, because of that) metal become something good in motor oil?? If they use micro-fine flakes, can it pressure plate onto softer metals, the way a moly lubricant does??

Curious because I've heard of all sorts of plasma-sprayed coatings, laser treatments...just hadn't heard of using titanium in a lubricant, or a protective surfacing, anywhere else.
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Old 06-21-2015, 05:38 AM   #19
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Pete-
HTF does titanium, an incredibly hard (and presumably abrasive, because of that) metal become something good in motor oil?? If they use micro-fine flakes, can it pressure plate onto softer metals, the way a moly lubricant does??

Curious because I've heard of all sorts of plasma-sprayed coatings, laser treatments...just hadn't heard of using titanium in a lubricant, or a protective surfacing, anywhere else.
These are some fairly old links on the subject. I'm sure you can find something more recent by googling...


Creating a Greener Antiwear Additive for Engine Oils

ConocoPhillips reports on liquid titanium-enhanced oil | Equipment content from Fleet Owner
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Old 06-21-2015, 08:41 AM   #20
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Thanks, Pete. The first link at least made some sense, indicating that the titanium is somehow bonding into the iron of the block, almost like electroplating without the electricity. The second link...that's that damn Conoco nonsense about "liquid titanium" again, and no matter how you slice it, titanium ain't liquid under any conditions you'd want to see in your engine. In a volcano, maybe, but...I think they've taken "trade secret" to a new state of confusion. Weird.
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Old 06-21-2015, 08:41 AM
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