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#4508972 - 09/06/17 11:40 AM Mazda CX-9 OCI...sample or not?
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Hello,

Need some advice on my current OCI on my 2012 Mazda CX-9 3.7 V6. Coming up on 9 months on Mobil Synthetic 5w-20 with 4,588 miles. Manual says 6 months or 7,500 miles on conventional. This is my first OCI on full synthetic and had to add 1 quart of makeup oil early on...hoping it was from changing to synthetic (consumption has seemed to stop).

Question, should I sample and test at this point or wait 3 more months and change (plus test) at the 1 year mark?
Car is not short tripped and gets plenty of highway mileage...so should be good with no fuel dilution.

Thanks to all.
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2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4508985 - 09/06/17 11:52 AM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
I'm fairly sure the 2012 V6 engine is not direct injection...so IMO you could take it out to a year and not worry; sampling then makes sense along with the change, especially since it's mostly highway miles. (Or, if you're more aggressively pursuing a longer OCI, leave it in pending results)
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#4508989 - 09/06/17 11:59 AM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Thanks Kuato, yes not direct injection. Has Ford 3.7L V6. Just getting a little nervous because of time in OCI, but mileage relatively low and decent driving conditions. Time seems to be a minor variable in an OCI...just needed some experienced opinions. Appreciate your time.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509006 - 09/06/17 12:20 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Well its out of warranty now isn't it? I'd suggest the UOA now.
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
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#4509007 - 09/06/17 12:22 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Yes, it is out of warranty. Thanks.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509009 - 09/06/17 12:22 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
Nick1994 Online   content


Registered: 02/19/13
Posts: 10111
Loc: Phoenix, AZ
I'd wait until 1 year.
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2015 Hyundai Sonata 2.4L 79k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 146k M1 HM 10w40 & Fram Ultra

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#4509016 - 09/06/17 12:27 PM Re: Mazda CX-9 OCI...sample or not? [Re: Nick1994]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Originally Posted By: Nick1994
I'd wait until 1 year.


If he just pulls a sample from the pan through the dipstick tube and waits on the UOA he'll know just where he stands. He'll likely be in spec for an extended OCI but if he isn't well its much better to play it safe.


Edited by JohnnyJohnson (09/06/17 12:28 PM)
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4509026 - 09/06/17 12:38 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
My gut tells me I should be fine for a year or 7,500 miles on full synthetic. The manual says 6 months or 7,500 miles on conventional...unless I am missing something that happens to oil over time, say the 6 extra months. There are folks on here that have ran oil for 2+ years with low miles and came back looking good. This is my first OCI on this new proposed annual oil change on synthetic, I will probably sample just to be safe. Appreciate the help and guidance. Stay safe all.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509035 - 09/06/17 12:44 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Originally Posted By: mbacfp
My gut tells me I should be fine for a year or 7,500 miles on full synthetic. The manual says 6 months or 7,500 miles on conventional...unless I am missing something that happens to oil over time, say the 6 extra months. There are folks on here that have ran oil for 2+ years with low miles and came back looking good. This is my first OCI on this new proposed annual oil change on synthetic, I will probably sample just to be safe. Appreciate the help and guidance. Stay safe all.


Does your gut buy a new engine if you're wrong?


Edited by JohnnyJohnson (09/06/17 12:45 PM)
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4509039 - 09/06/17 12:47 PM Re: Mazda CX-9 OCI...sample or not? [Re: JohnnyJohnson]
Nick1994 Online   content


Registered: 02/19/13
Posts: 10111
Loc: Phoenix, AZ
Originally Posted By: JohnnyJohnson


Does your gut buy a new engine if you're wrong?
You must be new here.

You can run an engine 10k miles on conventional and it would probably be fine.

I'm guessing you change your oil every 3,000 miles?
_________________________
2015 Hyundai Sonata 2.4L 79k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 146k M1 HM 10w40 & Fram Ultra

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#4509044 - 09/06/17 12:49 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Ha, that is why I am going to sample or just change and sample. Gut's don't pay for new engine...that is for sure. Do plan on keeping the car or a while.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509046 - 09/06/17 12:51 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
SatinSilver Offline


Registered: 01/24/08
Posts: 10165
Loc: OH
Originally Posted By: mbacfp
This is my first OCI on full synthetic and had to add 1 quart of makeup oil early on...hoping it was from changing to synthetic (consumption has seemed to stop).

Question, should I sample and test at this point or wait 3 more months and change (plus test) at the 1 year mark?
Car is not short tripped and gets plenty of highway mileage...so should be good with no fuel dilution.


M1, Pennzoil Plat and Ultra seem to do the same thing when changing over to their synthetics(with cars over a few years old). Consume a little like you mention then it seems to go away after a few oil changes at the most. Nothing to be concerned about.

Change at the one year mark or 10k miles which ever comes first.

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#4509047 - 09/06/17 12:52 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Got a bunch of Pennzoil Ultra Platinum I am excited in running...might cave to the temptation early. Appreciate everyone's honestly and help. Thanks.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509049 - 09/06/17 12:55 PM Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Thanks SatinSilver, I noticed that exact same thing. Had dealer oil changes on bulk Castrol GTX for the first 49,000 miles...now consumption seems to have stopped later in OCI. Makes me feel better...started to wonder what was going on with the consumption.


Edited by mbacfp (09/06/17 12:57 PM)
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4509096 - 09/06/17 01:38 PM Re: Mazda CX-9 OCI...sample or not? [Re: Nick1994]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Originally Posted By: Nick1994
Originally Posted By: JohnnyJohnson


Does your gut buy a new engine if you're wrong?
You must be new here.

You can run an engine 10k miles on conventional and it would probably be fine.

I'm guessing you change your oil every 3,000 miles?


Did you read my registration date. LOL wrong twice!
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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