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5k mi. OCI - 6 moths or a year? #4621116
01/01/18 09:08 PM
01/01/18 09:08 PM
Joined: Dec 2017
Posts: 50
Idaho
RonRonnster Offline OP
RonRonnster  Offline OP
Joined: Dec 2017
Posts: 50
Idaho
Is mileage more important than time, or should I worry about oil degrading sitting in the oil pan? Vehicle in question is a '98 Chevy pickup 5.7L Vortec. Barely put 5k on it a year, and I usually change it with a non-extended drain synthetic, such as Amsoil OE, Mobil1 or Valvoline Synpower. Seems like a waste to drain it with barely over 2k miles each 6 months, but that's what I've been doing. Any harm in pushing this out a year and running the full 5k miles?


- 2007 GMC Yukon XL Denali - 6.2L / 81k mi.
- 1998 Chev K1500 4x4 - 5.7L / 155k mi.
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621119
01/01/18 09:10 PM
01/01/18 09:10 PM
Joined: Jun 2014
Posts: 1,773
Ca.
UncleDave Offline
UncleDave  Offline
Joined: Jun 2014
Posts: 1,773
Ca.
Id leave it in.
As long as you get it hot enough to burn off the moisture when you do run it - sump time is almost meaningless next to run time.

UD

Last edited by UncleDave; 01/01/18 09:11 PM.

Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621131
01/01/18 09:23 PM
01/01/18 09:23 PM
Joined: Nov 2011
Posts: 1,059
Lyndhurst NJ
Audios Offline
Audios  Offline
Joined: Nov 2011
Posts: 1,059
Lyndhurst NJ
5k or one year sounds totally acceptable for something like this.


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: 5k mi. OCI - 6 moths or a year? [Re: Audios] #4621139
01/01/18 09:33 PM
01/01/18 09:33 PM
Joined: Jul 2005
Posts: 30,440
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,440
NY
Originally Posted By: Audios
5k or one year sounds totally acceptable for something like this.


That works for me in two of my applications. With a UOA you might even be able to extend it beyond a year.


God Bless Our Troops

Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621146
01/01/18 09:39 PM
01/01/18 09:39 PM
Joined: Jul 2013
Posts: 2,210
Outer Banks, NC
NormanBuntz Offline
NormanBuntz  Offline
Joined: Jul 2013
Posts: 2,210
Outer Banks, NC
Are you also changing the Mobil 1 oil filters every 2,000 to 3,000 miles? If so, stretch it out, man. They're designed for much longer mileage.


2017 Honda Odyssey SE, 15K
2013 Honda Accord LX, 58K
2007 Honda Ridgeline RTS, 87K
2007 Infiniti M35, 106K
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621184
01/01/18 10:10 PM
01/01/18 10:10 PM
Joined: Dec 2002
Posts: 42,085
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,085
New Jersey
I do one year OCIs in my low use pickup. They work great. Just make sure to not short trip the truck if you can at all avoid it.... or at least try to get a longer drive on it before putting it away for a while.

Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621278
01/02/18 01:16 AM
01/02/18 01:16 AM
Joined: Dec 2015
Posts: 89
Pocatello, Idaho
compratio10_5 Offline
compratio10_5  Offline
Joined: Dec 2015
Posts: 89
Pocatello, Idaho
The most important life factor is operating time at low temperature for both oil and filter. In the winter, you need about 15 minutes driving at moderate load to get the oil up to operating temperature if the thermostat is working properly. It is preferable to operate for a minimum of 30 continuous minutes at least once a month if you are only driving it occasionally to allow the oil enough time at a high enough temperature to evaporate the condensed water, acids and fuel. If you can do this and use an upgraded filter that contains synthetic enhanced cellulose filter media (like Wix, Napa Gold or Fram Toughguard for example), then yearly changes are acceptable but watch that dipstick for any signs of moisture. If you cannot do this, better stick with the 6 month intervals. I don't think that synthetic oil helps extend the oil drain interval if it must be dumped because of contamination. As a fellow Idahoan, one more bit of advice, "Never put your horse away hot and never put your car away cold".


It's not what you don't know that hurts, it's what you think you know that ain't so. Will Rogers
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621279
01/02/18 01:20 AM
01/02/18 01:20 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
It is whatever is first--it's not a buffet that you can just choose.


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: 5k mi. OCI - 6 moths or a year? [Re: UncleDave] #4621295
01/02/18 02:14 AM
01/02/18 02:14 AM
Joined: Dec 2016
Posts: 6,241
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,241
Waco, TX
Originally Posted By: UncleDave
sump time is almost meaningless next to run time.


100% correct.

Tons of excellent/amazing UOA's of oil that's been in the engine for multiple years (if you search it out).

Time in service = very little significance

Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621311
01/02/18 04:11 AM
01/02/18 04:11 AM
Joined: Jul 2015
Posts: 4,624
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,624
Down Under
I would do 5k miles or 1 year, whichever comes first.

If you haven't done the distance at 6 months, then keep the oil in the sump and keep going. As long as the car gets properly warm every so often.


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4621409
01/02/18 08:54 AM
01/02/18 08:54 AM
Joined: May 2016
Posts: 293
New England
NibbanaBanana Offline
NibbanaBanana  Offline
Joined: May 2016
Posts: 293
New England
I put about 1000-1500 miles a year on my 1993 E350 that I built into a camper. Use M1 10w-30 and change at 5000 mile OCI's which is about every 4-5 years. No problems so far. My guess is that the motor is not going to be what kills this truck. I do recommend an OEM oil filter.


1993 Ford E350 5.8L, 68K
2002 Ford E150 4.2L, 85K
2006 Chevy Aveo 1.6L 215K
2013 Kia Reo 1.4L, 101K
7500 OCI, M1 5-30 winter, M1 10-30 summer
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4622066
01/02/18 07:30 PM
01/02/18 07:30 PM
Joined: Dec 2017
Posts: 50
Idaho
RonRonnster Offline OP
RonRonnster  Offline OP
Joined: Dec 2017
Posts: 50
Idaho
So far it seems the overwhelming consensus is to run out the full OCI even it extends to a full year. I've been leaning towards this for a while - it just seemed like a waste to dump the oil with such little use. Wanted to get some opinions first, just so I could over think it some more! lol.


- 2007 GMC Yukon XL Denali - 6.2L / 81k mi.
- 1998 Chev K1500 4x4 - 5.7L / 155k mi.
Re: 5k mi. OCI - 6 moths or a year? [Re: RonRonnster] #4626362
01/06/18 09:18 PM
01/06/18 09:18 PM
Joined: Oct 2005
Posts: 1,662
South Dakota
otis24 Offline
otis24  Offline
Joined: Oct 2005
Posts: 1,662
South Dakota
With that low of annual mileage and a good oil/filter, I would go two years.


1991 Chevrolet K1500 (4.3, 4x4, 86k miles)

2016 Dodge Grand Caravan
(3.6 V6) 46500 miles

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