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#4462964 - 07/18/17 02:47 PM Change now or not?
blupupher Offline


Registered: 08/27/04
Posts: 4429
Loc: Katy, Republic of Texas
Well, trying to figure out if I should change my oil now or not.

Short version:
Scion in sig, 3000 miles in 8 months on Auto Zone 0w-20 synthetic/CQ Blue filter. Lots of short trips, but several 50 mile highway trips a month.


Long version:

Yes, I know UOA is the only way to tell for sure, but not going to happen.

This is the 2012 Scion xB in the sig, right at 38,000 miles on the vehicle.
First 5 oil changes were done at the dealer using TGMO 5w-20 and Toyota filters (free).
  • 4,930 miles, 6 months
  • 4,798 miles, 6 months
  • 3,763 miles, 5 months
  • 3,107 miles, 3 months
  • 3,261 miles, 4 months
Now, a 6 month/5,000 mile interval using synthetics (hoping to prevent the clogged piston oil holes/consumption issue the 2AZ-FE has).
The past 3 changes were with Pennzoil Platinum (pre GTL technology oil) 5w-20.
  • 4,988 miles, 6 months
  • 5,152 miles, 5 months
  • 4,976 miles, 6 months
Current fill is Auto Zone 0w-20 Synthetic.
Last oil change was December 2, so I am over 8 months since last change, but only ~3,000 miles into this OCI.
My wife quit working last October and now it is not driven near as much.

I feel like if I change it now with so few miles, I am wasting oil, but at 8 months, it means lots of short trips.
It does make several 50 mile highway trips a month, so not really worried a lot about fuel/moisture dilution.

So should I just go ahead and change it now, or just wait for a full year/5000 miles?
_________________________
1994 Honda VT1100C: Peak 15w-40/TG/2500 mile OCI
2002 Ford F150: GTX HM 5w-20/EcoGard Syn/1yr OCI
2012 Scion xB: QSUD 0w-20/CQ Blue/5k OCI


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#4462966 - 07/18/17 02:50 PM Re: Change now or not? [Re: blupupher]
HemiHawk Offline


Registered: 03/09/16
Posts: 842
Loc: PA,US
I would think you're fine but this

"Now, a 6 month/5,000 mile interval using synthetics (hoping to prevent the clogged piston oil holes/consumption issue the 2AZ-FE has)."

Says you may just want to go ahead and change it this motor is known to have issues like that.
_________________________
2016 Nissan Frontier Pro4x
2017 VW GTI sport
1997 Jeep GC 4.0

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#4462968 - 07/18/17 02:52 PM Re: Change now or not? [Re: blupupher]
bigt61 Offline


Registered: 02/12/13
Posts: 3117
Loc: Virginia
Just change it at 6000 miles, even if it takes you two years. Even that is conservative - just keep it topped off.
_________________________
92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k

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#4462969 - 07/18/17 02:52 PM Re: Change now or not? [Re: blupupher]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
I'll get yelled at for this one, for sure: How does the oil look on an ink blot test on a white paper towel?
_________________________
too many cars and oil combinations to list in 150 characters or less

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#4462970 - 07/18/17 02:52 PM Re: Change now or not? [Re: blupupher]
Kira Offline


Registered: 08/19/10
Posts: 5263
Loc: Champlain/Hudson Valley
Full year / 5,000 miles due to the 50 mile "purge" trips.

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#4462979 - 07/18/17 02:56 PM Re: Change now or not? [Re: L_Sludger]
Donald Online   content


Registered: 03/21/04
Posts: 20471
Loc: Upstate NY
Originally Posted By: L_Sludger
I'll get yelled at for this one, for sure: How does the oil look on an ink blot test on a white paper towel?


Do that in a diesel engine!!
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#4463039 - 07/18/17 03:54 PM Re: Change now or not? [Re: Donald]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: Donald
Originally Posted By: L_Sludger
I'll get yelled at for this one, for sure: How does the oil look on an ink blot test on a white paper towel?


Do that in a diesel engine!!
Ok, I'll bite. Why? The only diesel I worked on was a 2007 Isuzu NQR with the 5.2L 4HK1-TC engine. Very few miles, less than 30,000.
Whenever I changed the oil in that truck, it would turn BLACK as soon as I restarted it. That quickly. Thus making the blotter test pointless (if going just by color)
_________________________
too many cars and oil combinations to list in 150 characters or less

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#4463058 - 07/18/17 04:22 PM Re: Change now or not? [Re: blupupher]
SilverFusion2010 Online   content


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
I think that was the point. Soot
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4463093 - 07/18/17 05:02 PM Re: Change now or not? [Re: blupupher]
Bud Online   content


Registered: 06/04/02
Posts: 1724
Loc: Texas
Wait a full year.
_________________________
2016 Honda Pilot EX-L with NAV.....Mobil 1 0w20 AFE and Ultra XG7317

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#4463136 - 07/18/17 05:55 PM Re: Change now or not? [Re: HemiHawk]
blupupher Offline


Registered: 08/27/04
Posts: 4429
Loc: Katy, Republic of Texas
Originally Posted By: HemiHawk
I would think you're fine but this

"Now, a 6 month/5,000 mile interval using synthetics (hoping to prevent the clogged piston oil holes/consumption issue the 2AZ-FE has)."

Says you may just want to go ahead and change it this motor is known to have issues like that.

That is the main reason I am debating changing it now. Supposedly it was fixed by the 2012 model year, but only way to know is time/miles.
The 2AZ-FE was used in few vehicles for the 2012 MY (I think the xB was the only vehicle using it still), so not a lot of 2012 data out there.

Originally Posted By: bigt61
Just change it at 6000 miles, even if it takes you two years. Even that is conservative - just keep it topped off.

Don't think I could ever make myself go 2 years. Me waiting for 1 years is a huge jump.
So far, there is no consumption.

Originally Posted By: L_Sludger
I'll get yelled at for this one, for sure: How does the oil look on an ink blot test on a white paper towel?


A dark, golden honey color.


This is on a coffee filter, the red circled one is a drop of new oil (same brand).



Originally Posted By: Kira
Full year / 5,000 miles due to the 50 mile "purge" trips.

Originally Posted By: Bud
Wait a full year.


I think this is what I should do (except for the small concern about the 2AZ-FE issues).
Her highway trips are well over 1/2 the mileage on it, so as I said, fuel dilution/moisture contamination is not a concern.

With so much oil sitting in my stash, I am just getting the itch to change it.
Maybe I will go change my mother in laws oil.
_________________________
1994 Honda VT1100C: Peak 15w-40/TG/2500 mile OCI
2002 Ford F150: GTX HM 5w-20/EcoGard Syn/1yr OCI
2012 Scion xB: QSUD 0w-20/CQ Blue/5k OCI


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#4463148 - 07/18/17 06:08 PM Re: Change now or not? [Re: blupupher]
car51 Online   content


Registered: 03/12/15
Posts: 10266
Loc: Southwest PA
Originally Posted By: blupupher
Originally Posted By: HemiHawk
I would think you're fine but this

"Now, a 6 month/5,000 mile interval using synthetics (hoping to prevent the clogged piston oil holes/consumption issue the 2AZ-FE has)."

Says you may just want to go ahead and change it this motor is known to have issues like that.

That is the main reason I am debating changing it now. Supposedly it was fixed by the 2012 model year, but only way to know is time/miles.
The 2AZ-FE was used in few vehicles for the 2012 MY (I think the xB was the only vehicle using it still), so not a lot of 2012 data out there.

Originally Posted By: bigt61
Just change it at 6000 miles, even if it takes you two years. Even that is conservative - just keep it topped off.

Don't think I could ever make myself go 2 years. Me waiting for 1 years is a huge jump.
So far, there is no consumption.

Originally Posted By: L_Sludger
I'll get yelled at for this one, for sure: How does the oil look on an ink blot test on a white paper towel?


A dark, golden honey color.


This is on a coffee filter, the red circled one is a drop of new oil (same brand).



Originally Posted By: Kira
Full year / 5,000 miles due to the 50 mile "purge" trips.

Originally Posted By: Bud
Wait a full year.


I think this is what I should do (except for the small concern about the 2AZ-FE issues).
Her highway trips are well over 1/2 the mileage on it, so as I said, fuel dilution/moisture contamination is not a concern.

With so much oil sitting in my stash, I am just getting the itch to change it.
Maybe I will go change my mother in laws oil.


just change it for the peace of mind smile

I go 4K~ miles on my toyota but know I could go tad longer.
_________________________
2009 Toyota Camry LE

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#4463160 - 07/18/17 06:22 PM Re: Change now or not? [Re: bigt61]
Oregoonian Offline


Registered: 02/06/10
Posts: 2761
Loc: Bend, Oregon
Originally Posted By: bigt61
Just change it at 6000 miles, even if it takes you two years. Even that is conservative - just keep it topped off.

IMO....your under utilizing a good mid-range synthetic. As long as you take those 50 highway miles a few time a month, your short tripping should be negligible.....so 1 year or 6 to 7K should be OK. I would also suggest an 0w20.

I would also suggest getting a good top-tier filter such as the Fram ULTRA.....which can be used for two OC's (up to 15K). Its reasonably priced and can be purchased on-line or in the store, at you local WalMart.
_________________________
03' Ford Focus SE(2.3L Duratec PZEV)/ 140K +
Pnz. Ultra 0w20 / Fram 'Ultra'/ OCI: 8000 +/-
ATF: Mercon V w/Lubegard Red


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#4463204 - 07/18/17 07:14 PM Re: Change now or not? [Re: blupupher]
danez_yoda Offline


Registered: 07/18/09
Posts: 471
Loc: texas
Let er rip tatter chip! That oils has plenty of life in it.

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#4463224 - 07/18/17 07:40 PM Re: Change now or not? [Re: blupupher]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
Don't know how much fuel dilution one gets with cold starts in TX. I just dropped the oil in my 2013 Scion after the OCI light went solid and felt guilty as the oil looked very clean.
Not all diesels turn the oil to ink instantly. My third 7.3 now after several thousand miles on the oil change still is a caramel color(74k). Seems the 7.3 can go to 120k+ before its starts carbonizing up the oil.
_________________________

97 Ford E350 D,99 F350 dually D
13 Scion Xb
12 Ford Transit Connect
06 Nissan Xterra
03 K1200 BMW
07 Kawasaki KLR650
13 Madass

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#4464021 - 07/19/17 01:44 PM Re: Change now or not? [Re: blupupher]
Alex_V Offline


Registered: 04/10/16
Posts: 1155
Loc: Campbellsville, KY
Run it to the full year. And if you're worried about synthetic oil changed every 3,500-4,000 mi. letting the pistons get stoved up, keep the 5K change interval and run 89 octane in it.
_________________________
I like Chevy and Valvoline.

'13 Cruze, 1.4T, 112K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 167K
'67 Suburban, 350, 331K

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