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Should I change my oil?? #4680064
02/27/18 09:19 PM
02/27/18 09:19 PM
Joined: Apr 2012
Posts: 2,697
West Michigan
buck91 Offline OP
buck91  Offline OP
Joined: Apr 2012
Posts: 2,697
West Michigan
So I know this has come up before on bitog but I just canít decide what I should do. Getting some spring fever so Iím getting my mustang ready for ragtop season. Last oil change was last February or March. But that was also only 1600 miles ago. It was a Dino (havoline HM 5w30 I believe) with a MC FL820s filter. Obviously the car doesnít get driven a whole lot but I try to take it or, maybe to work a few times a week when itís nice out. Generally gets driven a bit on the rough side. Oil on the dip stock looks nice, like it is clean still.

As far as I know the big arguement to change the oil is possibly decrease Tbn from sitting all winter with acid and products of combustion. Also some possible water contamination from condensation and the polymerizing of some parafins or other waxes in the base stock. Not too worried about the cost of a change but if there is really no reason to do so then I wonít. If there really is, I will.

Thoughts?


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Should I change my oil?? [Re: buck91] #4680075
02/27/18 09:30 PM
02/27/18 09:30 PM
Joined: Jan 2008
Posts: 546
North Carolina
WANG Offline
WANG  Offline
Joined: Jan 2008
Posts: 546
North Carolina
UOA, man.
It's probably fine, but with a UOA you would have some science to confirm or deny that opinion.
I've kept oil in service for long time stretches and low mileage emboldened by UOAs.

Last edited by WANG; 02/27/18 09:31 PM.

"Sportbikes have evolved from an axe into a scalpel.
Problem is, the average sportbike buyer is more lumberjack than surgeon." -Richard Pollock
Re: Should I change my oil?? [Re: buck91] #4680087
02/27/18 09:38 PM
02/27/18 09:38 PM
Joined: Jun 2015
Posts: 297
montreal ,canada
madeej11 Offline
madeej11  Offline
Joined: Jun 2015
Posts: 297
montreal ,canada
Give it a couple of good runs to get rid of contaminants and keep it in there. It'll be fine, don't waste good oil.

Re: Should I change my oil?? [Re: madeej11] #4680101
02/27/18 09:57 PM
02/27/18 09:57 PM
Joined: Jan 2018
Posts: 538
San Antonio, TX
das_peikko Offline
das_peikko  Offline
Joined: Jan 2018
Posts: 538
San Antonio, TX
Originally Posted By: madeej11
It'll be fine, don't waste good oil.

^^^ That's the most widely accepted popular answer right there.

If you have less than 5000 miles on the oil and you're wanting to drain it, keep it to yourself and forever hold your peace. spank

Re: Should I change my oil?? [Re: WANG] #4680116
02/27/18 10:23 PM
02/27/18 10:23 PM
Joined: Oct 2014
Posts: 12,555
Idaho
CT8 Online content
CT8  Online Content
Joined: Oct 2014
Posts: 12,555
Idaho
Originally Posted By: WANG
UOA, man.
It's probably fine, but with a UOA you would have some science to confirm or deny that opinion.
I've kept oil in service for long time stretches and low mileage emboldened by UOAs.
For the cost of a uoa change the oil.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Should I change my oil?? [Re: buck91] #4680118
02/27/18 10:26 PM
02/27/18 10:26 PM
Joined: Dec 2006
Posts: 19,104
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 19,104
Dallas,Tx USA
Been in there for a year? I'd change it.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 5W20

Re: Should I change my oil?? [Re: CT8] #4680129
02/27/18 10:51 PM
02/27/18 10:51 PM
Joined: Jan 2018
Posts: 538
San Antonio, TX
das_peikko Offline
das_peikko  Offline
Joined: Jan 2018
Posts: 538
San Antonio, TX
Originally Posted By: CT8
For the cost of a uoa change the oil.

But then there's still the slight chance of wasting good oil. You're better off spending the $20 for the UOA so you can save the $10 in oil.

Re: Should I change my oil?? [Re: buck91] #4680130
02/27/18 10:51 PM
02/27/18 10:51 PM
Joined: Sep 2015
Posts: 2,471
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,471
Malaysia
1600 miles ? Keep the dino.
You may consider FOC blotter spot test.

Re: Should I change my oil?? [Re: buck91] #4680140
02/27/18 11:16 PM
02/27/18 11:16 PM
Joined: Sep 2014
Posts: 2,175
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,175
US-WA
duh
It's sub 2k mi, how much degradation can oil go through in that period?
I'm not here asking if I should change my 3 year old oil in the Jeep because that would still be a silly question to ask.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: Should I change my oil?? [Re: aquariuscsm] #4680150
02/27/18 11:40 PM
02/27/18 11:40 PM
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
Originally Posted By: aquariuscsm
Been in there for a year? I'd change it.


Same here, I don't overthink such things and I wouldn't spend money on a UOA for this oil and usage.


ASE L1, Master. Deutsch Meisterbrief.
Re: Should I change my oil?? [Re: buck91] #4680157
02/27/18 11:53 PM
02/27/18 11:53 PM
Joined: Dec 2017
Posts: 2,969
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,969
SE British Columbia, Canada
I donít think oil sitting in the oil pan degrades at all. If you think it does, go get a bucket, pour your used oil in it. Have a UOA done. Leave it the equivalent time as your winter hiatus. Do a UOA. There wonít be a difference.


If you want the job done right......do it yourself.
Re: Should I change my oil?? [Re: buck91] #4680172
02/28/18 12:18 AM
02/28/18 12:18 AM
Joined: Nov 2008
Posts: 9,277
Phoenix
dishdude Offline
dishdude  Offline
Joined: Nov 2008
Posts: 9,277
Phoenix
No UOA needed. Oil with only 1600 miles on it that hasn't even been in the sump a year is fine. All you need to do is drive


2018 Challenger SRT 392 PUP 0w-40 Wix 57899XP
2018 GTI
Re: Should I change my oil?? [Re: buck91] #4680231
02/28/18 05:08 AM
02/28/18 05:08 AM
Joined: Jun 2016
Posts: 552
South OZ
KL31 Offline
KL31  Offline
Joined: Jun 2016
Posts: 552
South OZ
Having driven a car for almost 18 months and then UOA'ing, I can confirm TBN is still good.

There's some threads here where users have kept low mileage oil in their engines for 5 years and UOA comes back good.

I've yet to see an extended oil change interval with time being the only factor come back with bad results. It will be fine almost certainly. I mean maybe if you left it under 6 feet of snow for the whole time, maybe that would be an issue. But garaged, no problemo.


95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn
Re: Should I change my oil?? [Re: das_peikko] #4680247
02/28/18 05:40 AM
02/28/18 05:40 AM
Joined: May 2013
Posts: 681
Florida
SilverSnake Offline
SilverSnake  Offline
Joined: May 2013
Posts: 681
Florida
Originally Posted By: das_peikko
But then there's still the slight chance of wasting good oil. You're better off spending the $20 for the UOA so you can save the $10 in oil.


This about sums it up.


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: Should I change my oil?? [Re: buck91] #4680249
02/28/18 05:42 AM
02/28/18 05:42 AM
Joined: Jun 2005
Posts: 772
Danville, Indiana
IndyFan Offline
IndyFan  Offline
Joined: Jun 2005
Posts: 772
Danville, Indiana
Where are you getting a UOA for 20 bucks? Blackstone charges $28.


18 Jeep JLUR Wrangler 3.6 13k
15 Ford Transit 105k, Reman 3.5 @85k
08 Jeep Wrangler 3.8 127k
01 Ford F150 Crew 5.4 89k
99 Mercedes E430 Sport 90k
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