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Oil Change interval-mileage versus months? #4439395
06/23/17 11:49 AM
06/23/17 11:49 AM
Joined: Jun 2002
Posts: 24
Southeast
frule Offline OP
frule  Offline OP
Joined: Jun 2002
Posts: 24
Southeast
My wife has a 2015 Subaru Forester (naturally aspirated, 4-cyl) that is driven only 4,500 to 5,000 miles per year. But it's driven at least 2x a week where the trip is 15 miles highway.

Subaru now specifies oil and filter (full synthetic) twice a year. Is this overkill (every 2500 miles for full synth oil + filter). It is out of warranty.

Thanks!

Re: Oil Change interval-mileage versus months? [Re: frule] #4439398
06/23/17 11:55 AM
06/23/17 11:55 AM
Joined: Jan 2008
Posts: 3,296
Central Iowa
TiredTrucker Offline
TiredTrucker  Offline
Joined: Jan 2008
Posts: 3,296
Central Iowa
I don't have that vehicle, but my situation is similar. I change oil annually.


Freedom is not about having the choice to do what you want, but the choice to do what you ought.
Re: Oil Change interval-mileage versus months? [Re: frule] #4439399
06/23/17 11:56 AM
06/23/17 11:56 AM
Joined: Sep 2004
Posts: 1,044
Basehor, KS
JayhawkRoy Offline
JayhawkRoy  Offline
Joined: Sep 2004
Posts: 1,044
Basehor, KS
Out of warranty, I would go with once a year oil changes. I have two lightly driven trucks where I do this and the oldest has lasted only 21 years so far. You can always adjust if the usage goes up.

Re: Oil Change interval-mileage versus months? [Re: frule] #4439400
06/23/17 11:59 AM
06/23/17 11:59 AM
Joined: Jun 2016
Posts: 107
US
TheOilWizard Offline
TheOilWizard  Offline
Joined: Jun 2016
Posts: 107
US
Run the oil for 8-9 months and perform a UOA. Then use that data to make a decision on whether 1 year is feasible.

Re: Oil Change interval-mileage versus months? [Re: frule] #4439404
06/23/17 12:04 PM
06/23/17 12:04 PM
Joined: Dec 2011
Posts: 4,754
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 4,754
North Carolina
Annual oil changes sounds about right.

Perhaps even bi-annual changes would be feasible with the right oil. Think Castrol EP or similar.


"Zed's dead baby, Zed's dead."
Re: Oil Change interval-mileage versus months? [Re: frule] #4439411
06/23/17 12:11 PM
06/23/17 12:11 PM
Joined: Sep 2014
Posts: 1,446
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,446
Toronto Canada
If you go for extended oil changes, do not neglect checking the oil level on a regular basis. Other than that, a yearly oil change is probably the right thing to do.

Re: Oil Change interval-mileage versus months? [Re: frule] #4439425
06/23/17 12:22 PM
06/23/17 12:22 PM
Joined: Jul 2013
Posts: 2,212
Outer Banks, NC
NormanBuntz Offline
NormanBuntz  Offline
Joined: Jul 2013
Posts: 2,212
Outer Banks, NC
In your case, out of warranty translates to annual changes with synthetic. I recently traded my 2015 Outback.


2017 Honda Odyssey SE, 15K
2013 Honda Accord LX, 58K
2007 Honda Ridgeline RTS, 87K
2007 Infiniti M35, 106K
Re: Oil Change interval-mileage versus months? [Re: frule] #4439439
06/23/17 12:33 PM
06/23/17 12:33 PM
Joined: Oct 2014
Posts: 11,855
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,855
Idaho
Out of warranty already?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Oil Change interval-mileage versus months? [Re: frule] #4439509
06/23/17 01:39 PM
06/23/17 01:39 PM
Joined: Aug 2010
Posts: 1,025
pa
benjy Offline
benjy  Offline
Joined: Aug 2010
Posts: 1,025
pa
short trips can kill the oil especially in colder weather, it takes a good half hr drive to dry it out! you DO NOT need to have the dealer $$$$ do oil changes to protect your warranty!!! use spec oil + a good filter like wix aka napa gold + keep receipts + records. i change the oil in my aunts jeep every 6 months with pennzoil platinum usually less than 2,000 miles. many short trips to local stores, but oil is cheap if you intend to keep your ride a while, an independent can do your services as well prolly half the stealer cost

Re: Oil Change interval-mileage versus months? [Re: CT8] #4439514
06/23/17 01:43 PM
06/23/17 01:43 PM
Joined: Jun 2002
Posts: 24
Southeast
frule Offline OP
frule  Offline OP
Joined: Jun 2002
Posts: 24
Southeast
Will be by next oil change. Bought in 2014.

Re: Oil Change interval-mileage versus months? [Re: benjy] #4439515
06/23/17 01:43 PM
06/23/17 01:43 PM
Joined: Aug 2008
Posts: 2,080
Cali
Malo83 Offline
Malo83  Offline
Joined: Aug 2008
Posts: 2,080
Cali
5K or twice a year is my interval regardless.

Re: Oil Change interval-mileage versus months? [Re: frule] #4439550
06/23/17 02:12 PM
06/23/17 02:12 PM
Joined: Jun 2016
Posts: 2,997
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 2,997
MN
Subaru went to frequent oil changes when they realized:

(a) Doesn't cost them anything to recommend 6 month oil changes.
(b) It can prevent the notorious Subaru high oil consumption from killing an engine if they come in for an oil change.
(c) They can use lack of frequent oil changes as a way to deny engine warranty claims.

There is no downside in Subaru's view to frequent oil changes.
If you're not sure, just put in Mobil1 Extended Protection or Castrol Edge Extended Protection, with a Fram Ultra oil filter, check the oil level once a month, and leave it in for 1 year.

Re: Oil Change interval-mileage versus months? [Re: frule] #4439582
06/23/17 02:54 PM
06/23/17 02:54 PM
Joined: Oct 2014
Posts: 1,223
NoVA
Jimzz Offline
Jimzz  Offline
Joined: Oct 2014
Posts: 1,223
NoVA
I agree with most. Use a synthetic oil and change once a year. Just check the oil level every month or 1000miles, which ever comes first.


yup
Re: Oil Change interval-mileage versus months? [Re: Malo83] #4439640
06/23/17 04:03 PM
06/23/17 04:03 PM
Joined: May 2013
Posts: 679
Florida
SilverSnake Online content
SilverSnake  Online Content
Joined: May 2013
Posts: 679
Florida
Originally Posted By: Malo83
5K or twice a year is my interval regardless.


This is exactly what I do for all my vehicles. Always works out to less than 5K by the time six months rolls around.


2016 Charger, 6.4L-485 HP (PUP 0W-40)
2017 BMW 330i, 2L-248 HP (BMW 0W-20)
2018 Jeep GC, 5.7L-360 HP (PP 5W-20)
2008 20KW Generac (Amsoil 10W-30/30)
Re: Oil Change interval-mileage versus months? [Re: frule] #4439746
06/23/17 06:28 PM
06/23/17 06:28 PM
Joined: Oct 2015
Posts: 475
MN
WillsYoda Offline
WillsYoda  Offline
Joined: Oct 2015
Posts: 475
MN
1 year easy.

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