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Mazda CX-9 OCI...sample or not? #4508972
09/06/17 11:40 AM
09/06/17 11:40 AM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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.


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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4508985
09/06/17 11:52 AM
09/06/17 11:52 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline

Joined: Oct 2005
Posts: 7,094
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)


Thick vs Thin test: 15k / 43k miles complete
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4508989
09/06/17 11:59 AM
09/06/17 11:59 AM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509006
09/06/17 12:20 PM
09/06/17 12:20 PM
Joined: Oct 2009
Posts: 4,030
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,030
Wet side WA
Well its out of warranty now isn't it? I'd suggest the UOA now.


2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509007
09/06/17 12:22 PM
09/06/17 12:22 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509009
09/06/17 12:22 PM
09/06/17 12:22 PM
Joined: Feb 2013
Posts: 11,344
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,344
Phoenix, AZ
I'd wait until 1 year.


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: Mazda CX-9 OCI...sample or not? [Re: Nick1994] #4509016
09/06/17 12:27 PM
09/06/17 12:27 PM
Joined: Oct 2009
Posts: 4,030
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,030
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.

Last edited by JohnnyJohnson; 09/06/17 12:28 PM.

2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509026
09/06/17 12:38 PM
09/06/17 12:38 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509035
09/06/17 12:44 PM
09/06/17 12:44 PM
Joined: Oct 2009
Posts: 4,030
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,030
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?

Last edited by JohnnyJohnson; 09/06/17 12:45 PM.

2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazda CX-9 OCI...sample or not? [Re: JohnnyJohnson] #4509039
09/06/17 12:47 PM
09/06/17 12:47 PM
Joined: Feb 2013
Posts: 11,344
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,344
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 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509044
09/06/17 12:49 PM
09/06/17 12:49 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509046
09/06/17 12:51 PM
09/06/17 12:51 PM
Joined: Jan 2008
Posts: 11,257
OH
SatinSilver Offline
SatinSilver  Offline

Joined: Jan 2008
Posts: 11,257
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.

Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509047
09/06/17 12:52 PM
09/06/17 12:52 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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
Re: Mazda CX-9 OCI...sample or not? [Re: mbacfp] #4509049
09/06/17 12:55 PM
09/06/17 12:55 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
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.

Last 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
Re: Mazda CX-9 OCI...sample or not? [Re: Nick1994] #4509096
09/06/17 01:38 PM
09/06/17 01:38 PM
Joined: Oct 2009
Posts: 4,030
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,030
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 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
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