Oil Change/Analysis

3554 Views 15 Replies 7 Participants Last post by oemtech, Mar 23, 2015

oemtech

Discussion Starter · Feb 27, 2015

OK peeps... I just got my 2nd FREE oil change and had sample pulled to send to Blackstone Labs. I was at 21% according to Onstar/Dealer. I am having a full panel of tests run including TAN (Total Acid Number) & TBN (Total Base Number). TAN shows how acidic your oil is and TBN shows what is left of the additive package (Oil Life - 21%?).

As a side note... I got 2015 ATS 2.0T as a loaner. It was a clone of my car except the color.
1. I will keep my 2014 as my butt dyno said it was a dud.
It felt like it was de-tuned.
87 octane versus 93 octane?
2. The radio didn't display the song title or artist like my 14... Menu option?
3. Didn't like the new grill.
4. I also didn't like the Cadillac badges without the wreath. Some how it looked like a Chevrolet or Buick badge.
5. Lastly the steering felt heavy. I ran it in Tour and Sport mode.
6. It did have lock/unlock buttons on the door handles which I like.

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clempot911

· #2 · Feb 28, 2015

Are you having them put a full synthetic in there or Dexos? How many miles covered?
It would be interesting to see the results for Dexos vs. a full synthetic.
Last oil analysis I had done (not ATS), I had Mobil 1 in the vehicle for full year, 7k miles and the numbers came back fine,
in fact the lab said I should consider extending the oil changes by another 2k miles. But I’m sure my low mileage is not typical.

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