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#4703684 - 03/22/18 08:50 PM 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles
zeke1985 Offline


Registered: 09/14/11
Posts: 132
Loc: Kenutcky
Used Liqui Moly Mos2 this run.

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#4703695 - 03/22/18 09:03 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
spasm3 Online   content


Registered: 05/30/10
Posts: 8784
Loc: North Carolina
Looks good. Low iron and aluminum. I'm curious how if solid mos2 particle are in the oil, that the insolubles are not higher?
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#4703710 - 03/22/18 09:34 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1232
Loc: Winchester, Indiana
Looks good, but you can run that oil way longer than 4.2k. I'd go 6.5k and resample. BTW, if you go on Blackstone's website to get your report, you can click the little "Export without personal data" so you don't have to scribble out your info in Paint.

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#4703724 - 03/22/18 09:49 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2634
Loc: MN
Did the moly reduce iron wear? Something did it. That's way below average wear for your engine.

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#4703851 - 03/23/18 01:35 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
csandste Offline


Registered: 05/31/02
Posts: 1241
Loc: St. Peters, Missouri
One of my favorite cars, ever. That 3.5 engine was one of GM's best IMO.
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#4704094 - 03/23/18 10:16 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
Char Baby Offline


Registered: 05/25/05
Posts: 10086
Loc: ROCHESTER, NY
And here I thought the 3.1 V6 was the largest engine in this car.
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#4704208 - 03/23/18 12:44 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1243
Loc: Oregon
Great report. TBN sure didnít last very long. 5k OCI would be a good place to land.
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#4704296 - 03/23/18 02:09 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
Patman Offline



Registered: 05/27/02
Posts: 20501
Loc: Oakville, Ontario
I'm surprised that Blackstone said TBN is "sitting strong" at 2.6, when 2.0 is their cutoff point to render an oil no longer serviceable. Must be a new guy working there who made that comment.
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#4704636 - 03/23/18 08:04 PM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: Patman]
irv Online   content


Registered: 10/08/06
Posts: 1157
Loc: Oshawa, Ont. Canada
Originally Posted By: Patman
I'm surprised that Blackstone said TBN is "sitting strong" at 2.6, when 2.0 is their cutoff point to render an oil no longer serviceable. Must be a new guy working there who made that comment.


But yet it reads anything greater than >1 is desirable? I'm confused? Is the 2.0 cutoff maybe from another oil or is it the same across the board for all oils?
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#4705049 - 03/24/18 09:26 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: zeke1985]
Patman Offline



Registered: 05/27/02
Posts: 20501
Loc: Oakville, Ontario
The 2.0 cutoff was something that they used to mention a lot in the past, perhaps they've changed their test methods now they say anything above 1 is good? Either way, even if 1 is the cutoff, I'd hardly call a TBN of 2.6 as being "strong"

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#4705059 - 03/24/18 09:38 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: irv]
SatinSilver Offline


Registered: 01/24/08
Posts: 10341
Loc: OH
Originally Posted By: irv
But yet it reads anything greater than >1 is desirable? I'm confused? Is the 2.0 cutoff maybe from another oil or is it the same across the board for all oils?


You're correct about anything higher than 1 being desirable irv. Never heard of 2 being the cutoff. A 2.6 TBN is fine and I'd be happy with that after an oci.

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#4705105 - 03/24/18 10:20 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: Patman]
OVERKILL Offline


Registered: 04/28/08
Posts: 36603
Loc: Ontario, Canada
Originally Posted By: Patman
The 2.0 cutoff was something that they used to mention a lot in the past, perhaps they've changed their test methods now they say anything above 1 is good? Either way, even if 1 is the cutoff, I'd hardly call a TBN of 2.6 as being "strong"


Agreed. That's pretty much used up.
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#4705106 - 03/24/18 10:21 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: SatinSilver]
OVERKILL Offline


Registered: 04/28/08
Posts: 36603
Loc: Ontario, Canada
Originally Posted By: SatinSilver
Originally Posted By: irv
But yet it reads anything greater than >1 is desirable? I'm confused? Is the 2.0 cutoff maybe from another oil or is it the same across the board for all oils?


You're correct about anything higher than 1 being desirable irv. Never heard of 2 being the cutoff. A 2.6 TBN is fine and I'd be happy with that after an oci.


2.6 after a less than 5,000 mile OCI doesn't point to an oil being all that capable at many OEM drain intervals. We also lack TAN to contrast it to, giving us only part of the picture.
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#4705120 - 03/24/18 10:33 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: OVERKILL]
SatinSilver Offline


Registered: 01/24/08
Posts: 10341
Loc: OH
Originally Posted By: OVERKILL
2.6 after a less than 5,000 mile OCI doesn't point to an oil being all that capable at many OEM drain intervals. We also lack TAN to contrast it to, giving us only part of the picture.


Car sees severe service and who knows how long it was in there for. Below is from another thread.

Originally Posted By: zeke1985
2005 Chevy Malibu Maxx lt v6 3.5, 145,000 miles. Lots of city stop and go driving.

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#4705182 - 03/24/18 11:45 AM Re: 2005 Chevy Malibu Maxx PPHM 5w30 4,227 miles [Re: SatinSilver]
OVERKILL Offline


Registered: 04/28/08
Posts: 36603
Loc: Ontario, Canada
Originally Posted By: SatinSilver
Originally Posted By: OVERKILL
2.6 after a less than 5,000 mile OCI doesn't point to an oil being all that capable at many OEM drain intervals. We also lack TAN to contrast it to, giving us only part of the picture.


Car sees severe service and who knows how long it was in there for. Below is from another thread.

Originally Posted By: zeke1985
2005 Chevy Malibu Maxx lt v6 3.5, 145,000 miles. Lots of city stop and go driving.


For such a short run, I would have expected better TBN retention. This isn't a forced induction application or an engine that has a reputation for being hard on oil as far as I'm aware. City driving is a factor in many UOA's posted here, and that still, on vehicles with an OLM, tends to lead to OCI's much longer than this one.

Would liked to have seen TAN as well, as I noted earlier.
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